./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-18 06:44:28,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 06:44:28,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 06:44:28,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 06:44:28,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 06:44:28,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 06:44:28,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 06:44:28,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 06:44:28,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 06:44:28,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 06:44:28,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 06:44:28,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 06:44:28,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 06:44:28,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 06:44:28,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 06:44:28,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 06:44:28,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 06:44:28,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 06:44:28,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 06:44:28,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 06:44:28,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 06:44:28,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 06:44:28,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 06:44:28,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 06:44:28,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 06:44:28,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 06:44:28,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 06:44:28,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 06:44:28,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 06:44:28,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 06:44:28,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 06:44:28,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 06:44:28,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 06:44:28,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 06:44:29,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 06:44:29,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 06:44:29,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 06:44:29,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 06:44:29,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 06:44:29,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 06:44:29,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 06:44:29,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 06:44:29,039 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 06:44:29,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 06:44:29,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 06:44:29,042 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 06:44:29,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 06:44:29,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 06:44:29,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 06:44:29,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 06:44:29,044 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 06:44:29,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 06:44:29,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 06:44:29,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 06:44:29,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 06:44:29,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 06:44:29,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 06:44:29,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 06:44:29,046 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 06:44:29,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 06:44:29,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 06:44:29,047 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 06:44:29,047 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 06:44:29,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 06:44:29,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 06:44:29,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 06:44:29,048 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 06:44:29,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 06:44:29,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 06:44:29,049 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 06:44:29,049 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 06:44:29,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 06:44:29,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 06:44:29,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d256a8b259faad28b260c065eb5db63197c2a9358a88ea40fe4f65cbd4165ef2 [2021-12-18 06:44:29,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 06:44:29,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 06:44:29,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 06:44:29,291 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 06:44:29,291 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 06:44:29,292 INFO L432 ainManager$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 [2021-12-18 06:44:29,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420bc2ad3/3eb38a06d5c84508b458a440287f23c6/FLAGef869db5c [2021-12-18 06:44:29,939 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 06:44:29,940 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 [2021-12-18 06:44:29,976 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420bc2ad3/3eb38a06d5c84508b458a440287f23c6/FLAGef869db5c [2021-12-18 06:44:30,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420bc2ad3/3eb38a06d5c84508b458a440287f23c6 [2021-12-18 06:44:30,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 06:44:30,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 06:44:30,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 06:44:30,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 06:44:30,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 06:44:30,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:44:30" (1/1) ... [2021-12-18 06:44:30,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38709d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:30, skipping insertion in model container [2021-12-18 06:44:30,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:44:30" (1/1) ... [2021-12-18 06:44:30,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 06:44:30,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 06:44:31,353 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] [2021-12-18 06:44:31,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 06:44:31,474 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 06:44:31,670 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] [2021-12-18 06:44:31,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 06:44:31,781 INFO L208 MainTranslator]: Completed translation [2021-12-18 06:44:31,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31 WrapperNode [2021-12-18 06:44:31,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 06:44:31,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 06:44:31,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 06:44:31,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 06:44:31,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (1/1) ... [2021-12-18 06:44:31,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (1/1) ... [2021-12-18 06:44:31,962 INFO L137 Inliner]: procedures = 259, calls = 1102, calls flagged for inlining = 115, calls inlined = 111, statements flattened = 2802 [2021-12-18 06:44:31,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 06:44:31,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 06:44:31,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 06:44:31,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 06:44:31,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (1/1) ... [2021-12-18 06:44:31,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (1/1) ... [2021-12-18 06:44:31,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (1/1) ... [2021-12-18 06:44:31,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (1/1) ... [2021-12-18 06:44:32,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (1/1) ... [2021-12-18 06:44:32,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (1/1) ... [2021-12-18 06:44:32,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (1/1) ... [2021-12-18 06:44:32,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 06:44:32,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 06:44:32,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 06:44:32,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 06:44:32,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (1/1) ... [2021-12-18 06:44:32,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 06:44:32,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:44:32,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 06:44:32,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 06:44:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 06:44:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 06:44:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 06:44:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 06:44:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_create [2021-12-18 06:44:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_create [2021-12-18 06:44:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 06:44:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 06:44:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-18 06:44:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-18 06:44:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 06:44:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 06:44:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 06:44:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 06:44:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_event [2021-12-18 06:44:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_event [2021-12-18 06:44:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 06:44:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 06:44:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_packet [2021-12-18 06:44:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_packet [2021-12-18 06:44:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 06:44:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 06:44:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 06:44:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 06:44:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 06:44:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 06:44:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-18 06:44:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-18 06:44:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_notify_readers [2021-12-18 06:44:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_notify_readers [2021-12-18 06:44:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 06:44:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 06:44:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 06:44:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 06:44:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 06:44:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_close_device [2021-12-18 06:44:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_close_device [2021-12-18 06:44:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 06:44:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_fasync [2021-12-18 06:44:32,220 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_fasync [2021-12-18 06:44:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-12-18 06:44:32,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-12-18 06:44:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mousedev [2021-12-18 06:44:32,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mousedev [2021-12-18 06:44:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_poll [2021-12-18 06:44:32,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_poll [2021-12-18 06:44:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 06:44:32,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 06:44:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-18 06:44:32,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-18 06:44:32,221 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2021-12-18 06:44:32,222 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2021-12-18 06:44:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 06:44:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_destroy [2021-12-18 06:44:32,222 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_destroy [2021-12-18 06:44:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 06:44:32,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2021-12-18 06:44:32,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2021-12-18 06:44:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2021-12-18 06:44:32,223 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2021-12-18 06:44:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-18 06:44:32,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-18 06:44:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_limit_delta [2021-12-18 06:44:32,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_limit_delta [2021-12-18 06:44:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 06:44:32,224 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 06:44:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 06:44:32,224 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 06:44:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 06:44:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 06:44:32,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 06:44:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 06:44:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 06:44:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_key_event [2021-12-18 06:44:32,225 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_key_event [2021-12-18 06:44:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 06:44:32,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 06:44:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2021-12-18 06:44:32,225 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2021-12-18 06:44:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 06:44:32,226 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 06:44:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-18 06:44:32,226 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-18 06:44:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 06:44:32,226 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 06:44:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2021-12-18 06:44:32,227 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2021-12-18 06:44:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 06:44:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure input_close_device [2021-12-18 06:44:32,227 INFO L138 BoogieDeclarations]: Found implementation of procedure input_close_device [2021-12-18 06:44:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-18 06:44:32,227 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-18 06:44:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-18 06:44:32,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-18 06:44:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 06:44:32,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 06:44:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_new_minor [2021-12-18 06:44:32,228 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_new_minor [2021-12-18 06:44:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 06:44:32,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 06:44:32,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 06:44:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 06:44:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_write [2021-12-18 06:44:32,229 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_write [2021-12-18 06:44:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 06:44:32,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 06:44:32,229 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_handle [2021-12-18 06:44:32,229 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_handle [2021-12-18 06:44:32,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 06:44:32,230 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-18 06:44:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-18 06:44:32,230 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 06:44:32,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mousedev [2021-12-18 06:44:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mousedev [2021-12-18 06:44:32,230 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-18 06:44:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-18 06:44:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_detach_client [2021-12-18 06:44:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_detach_client [2021-12-18 06:44:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2021-12-18 06:44:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2021-12-18 06:44:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-18 06:44:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-18 06:44:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-18 06:44:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-18 06:44:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_minor [2021-12-18 06:44:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_minor [2021-12-18 06:44:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_cleanup [2021-12-18 06:44:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_cleanup [2021-12-18 06:44:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_open_device [2021-12-18 06:44:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_open_device [2021-12-18 06:44:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure mousedev_disconnect [2021-12-18 06:44:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure mousedev_disconnect [2021-12-18 06:44:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2021-12-18 06:44:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_mousedev [2021-12-18 06:44:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 06:44:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 06:44:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 06:44:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 06:44:32,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 06:44:32,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 06:44:32,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 06:44:32,255 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 06:44:32,256 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 06:44:32,735 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 06:44:32,738 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 06:44:33,027 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 06:44:36,471 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 06:44:36,496 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 06:44:36,496 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 06:44:36,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:44:36 BoogieIcfgContainer [2021-12-18 06:44:36,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 06:44:36,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 06:44:36,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 06:44:36,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 06:44:36,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:44:30" (1/3) ... [2021-12-18 06:44:36,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52aa0d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:44:36, skipping insertion in model container [2021-12-18 06:44:36,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:44:31" (2/3) ... [2021-12-18 06:44:36,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52aa0d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:44:36, skipping insertion in model container [2021-12-18 06:44:36,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:44:36" (3/3) ... [2021-12-18 06:44:36,510 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--mousedev.ko-entry_point.cil.out.i [2021-12-18 06:44:36,514 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 06:44:36,515 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 06:44:36,564 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 06:44:36,571 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 06:44:36,571 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 06:44:36,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 974 states, 715 states have (on average 1.3734265734265734) internal successors, (982), 747 states have internal predecessors, (982), 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) [2021-12-18 06:44:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-12-18 06:44:36,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:44:36,620 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:44:36,620 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:44:36,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:44:36,625 INFO L85 PathProgramCache]: Analyzing trace with hash -198581603, now seen corresponding path program 1 times [2021-12-18 06:44:36,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:44:36,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813752052] [2021-12-18 06:44:36,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:44:36,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:44:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:44:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:44:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:44:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:37,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:44:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:37,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:44:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:37,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:44:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:44:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:44:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:44:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:44:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:44:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:44:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:44:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:44:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:44:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:44:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:44:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:37,710 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-18 06:44:37,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:44:37,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813752052] [2021-12-18 06:44:37,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813752052] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:44:37,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:44:37,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 06:44:37,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340630801] [2021-12-18 06:44:37,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:44:37,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 06:44:37,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:44:37,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 06:44:37,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 06:44:37,743 INFO L87 Difference]: Start difference. First operand has 974 states, 715 states have (on average 1.3734265734265734) internal successors, (982), 747 states have internal predecessors, (982), 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) [2021-12-18 06:44:39,774 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 [] [2021-12-18 06:44:41,784 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 [] [2021-12-18 06:44:44,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:44:44,363 INFO L93 Difference]: Finished difference Result 2009 states and 2891 transitions. [2021-12-18 06:44:44,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 06:44:44,365 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 [2021-12-18 06:44:44,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:44:44,395 INFO L225 Difference]: With dead ends: 2009 [2021-12-18 06:44:44,395 INFO L226 Difference]: Without dead ends: 1029 [2021-12-18 06:44:44,406 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:44:44,411 INFO L933 BasicCegarLoop]: 1268 mSDtfsCounter, 705 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 495 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-12-18 06:44:44,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [716 Valid, 2795 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 1015 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-12-18 06:44:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2021-12-18 06:44:44,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 963. [2021-12-18 06:44:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 710 states have (on average 1.3661971830985915) internal successors, (970), 736 states have internal predecessors, (970), 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) [2021-12-18 06:44:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1345 transitions. [2021-12-18 06:44:44,529 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1345 transitions. Word has length 244 [2021-12-18 06:44:44,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:44:44,530 INFO L470 AbstractCegarLoop]: Abstraction has 963 states and 1345 transitions. [2021-12-18 06:44:44,530 INFO L471 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) [2021-12-18 06:44:44,531 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1345 transitions. [2021-12-18 06:44:44,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-12-18 06:44:44,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:44:44,535 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:44:44,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 06:44:44,536 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:44:44,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:44:44,536 INFO L85 PathProgramCache]: Analyzing trace with hash -61177171, now seen corresponding path program 1 times [2021-12-18 06:44:44,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:44:44,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229461558] [2021-12-18 06:44:44,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:44:44,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:44:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:44:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:44:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:44:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:44,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:44:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:44:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:44,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:44:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:45,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:44:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:44:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:44:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:44:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:44:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:44:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:44:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:44:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:44:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:44:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:44:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:45,222 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-18 06:44:45,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:44:45,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229461558] [2021-12-18 06:44:45,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229461558] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:44:45,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:44:45,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:44:45,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470330560] [2021-12-18 06:44:45,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:44:45,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:44:45,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:44:45,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:44:45,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:44:45,229 INFO L87 Difference]: Start difference. First operand 963 states and 1345 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) [2021-12-18 06:44:47,246 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 [] [2021-12-18 06:44:49,255 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 [] [2021-12-18 06:44:51,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:44:51,808 INFO L93 Difference]: Finished difference Result 2597 states and 3602 transitions. [2021-12-18 06:44:51,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 06:44:51,809 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 [2021-12-18 06:44:51,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:44:51,819 INFO L225 Difference]: With dead ends: 2597 [2021-12-18 06:44:51,819 INFO L226 Difference]: Without dead ends: 1676 [2021-12-18 06:44:51,823 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:44:51,824 INFO L933 BasicCegarLoop]: 1398 mSDtfsCounter, 1833 mSDsluCounter, 2009 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 884 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 3407 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-12-18 06:44:51,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1923 Valid, 3407 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [884 Valid, 1320 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-12-18 06:44:51,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2021-12-18 06:44:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1544. [2021-12-18 06:44:51,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1133 states have (on average 1.3451015004413063) internal successors, (1524), 1172 states have internal predecessors, (1524), 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) [2021-12-18 06:44:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2119 transitions. [2021-12-18 06:44:51,899 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2119 transitions. Word has length 244 [2021-12-18 06:44:51,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:44:51,903 INFO L470 AbstractCegarLoop]: Abstraction has 1544 states and 2119 transitions. [2021-12-18 06:44:51,904 INFO L471 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) [2021-12-18 06:44:51,904 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2119 transitions. [2021-12-18 06:44:51,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-18 06:44:51,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:44:51,910 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:44:51,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 06:44:51,912 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:44:51,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:44:51,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1677458404, now seen corresponding path program 1 times [2021-12-18 06:44:51,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:44:51,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891890593] [2021-12-18 06:44:51,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:44:51,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:44:52,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:44:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:44:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:44:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:44:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:44:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:44:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:44:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:44:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:44:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:44:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:44:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:44:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:44:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:44:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:44:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:44:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:44:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:44:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:44:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:44:52,594 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-18 06:44:52,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:44:52,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891890593] [2021-12-18 06:44:52,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891890593] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:44:52,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:44:52,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:44:52,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450988100] [2021-12-18 06:44:52,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:44:52,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:44:52,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:44:52,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:44:52,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:44:52,597 INFO L87 Difference]: Start difference. First operand 1544 states and 2119 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) [2021-12-18 06:44:54,614 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 [] [2021-12-18 06:44:56,622 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 [] [2021-12-18 06:44:59,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:44:59,628 INFO L93 Difference]: Finished difference Result 4617 states and 6366 transitions. [2021-12-18 06:44:59,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 06:44:59,629 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 [2021-12-18 06:44:59,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:44:59,646 INFO L225 Difference]: With dead ends: 4617 [2021-12-18 06:44:59,647 INFO L226 Difference]: Without dead ends: 3119 [2021-12-18 06:44:59,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 06:44:59,658 INFO L933 BasicCegarLoop]: 1866 mSDtfsCounter, 2068 mSDsluCounter, 2507 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 914 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2180 SdHoareTripleChecker+Valid, 4373 SdHoareTripleChecker+Invalid, 2371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 914 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-18 06:44:59,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2180 Valid, 4373 Invalid, 2371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [914 Valid, 1455 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-12-18 06:44:59,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2021-12-18 06:44:59,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 2895. [2021-12-18 06:44:59,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2135 states have (on average 1.3494145199063232) internal successors, (2881), 2202 states have internal predecessors, (2881), 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) [2021-12-18 06:44:59,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 3970 transitions. [2021-12-18 06:44:59,799 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 3970 transitions. Word has length 249 [2021-12-18 06:44:59,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:44:59,801 INFO L470 AbstractCegarLoop]: Abstraction has 2895 states and 3970 transitions. [2021-12-18 06:44:59,801 INFO L471 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) [2021-12-18 06:44:59,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 3970 transitions. [2021-12-18 06:44:59,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-12-18 06:44:59,806 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:44:59,806 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:44:59,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 06:44:59,807 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:44:59,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:44:59,807 INFO L85 PathProgramCache]: Analyzing trace with hash -140651745, now seen corresponding path program 1 times [2021-12-18 06:44:59,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:44:59,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993554771] [2021-12-18 06:44:59,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:44:59,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:45:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:45:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:45:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:45:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:45:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:45:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:45:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:45:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:45:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:45:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:45:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:45:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:45:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:45:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:45:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:45:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:45:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 06:45:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 06:45:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 06:45:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-18 06:45:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-18 06:45:00,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:45:00,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993554771] [2021-12-18 06:45:00,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993554771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:45:00,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:45:00,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 06:45:00,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224607275] [2021-12-18 06:45:00,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:45:00,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 06:45:00,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:45:00,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 06:45:00,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-18 06:45:00,444 INFO L87 Difference]: Start difference. First operand 2895 states and 3970 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) [2021-12-18 06:45:02,462 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 [] [2021-12-18 06:45:04,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:06,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:08,492 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 [] [2021-12-18 06:45:11,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:45:11,704 INFO L93 Difference]: Finished difference Result 7543 states and 10334 transitions. [2021-12-18 06:45:11,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 06:45:11,704 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 [2021-12-18 06:45:11,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:45:11,730 INFO L225 Difference]: With dead ends: 7543 [2021-12-18 06:45:11,730 INFO L226 Difference]: Without dead ends: 4704 [2021-12-18 06:45:11,765 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:45:11,766 INFO L933 BasicCegarLoop]: 1268 mSDtfsCounter, 2241 mSDsluCounter, 2677 mSDsCounter, 0 mSdLazyCounter, 2212 mSolverCounterSat, 1093 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2344 SdHoareTripleChecker+Valid, 3945 SdHoareTripleChecker+Invalid, 3309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1093 IncrementalHoareTripleChecker+Valid, 2212 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-12-18 06:45:11,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2344 Valid, 3945 Invalid, 3309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1093 Valid, 2212 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2021-12-18 06:45:11,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2021-12-18 06:45:11,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4353. [2021-12-18 06:45:11,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4353 states, 3208 states have (on average 1.3469451371571073) internal successors, (4321), 3309 states have internal predecessors, (4321), 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) [2021-12-18 06:45:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4353 states to 4353 states and 5934 transitions. [2021-12-18 06:45:11,924 INFO L78 Accepts]: Start accepts. Automaton has 4353 states and 5934 transitions. Word has length 275 [2021-12-18 06:45:11,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:45:11,925 INFO L470 AbstractCegarLoop]: Abstraction has 4353 states and 5934 transitions. [2021-12-18 06:45:11,925 INFO L471 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) [2021-12-18 06:45:11,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4353 states and 5934 transitions. [2021-12-18 06:45:11,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-12-18 06:45:11,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:45:11,929 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:45:11,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 06:45:11,930 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:45:11,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:45:11,930 INFO L85 PathProgramCache]: Analyzing trace with hash 432166607, now seen corresponding path program 1 times [2021-12-18 06:45:11,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:45:11,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229927000] [2021-12-18 06:45:11,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:45:11,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:45:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:45:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:45:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:45:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:12,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:45:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:45:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:45:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:45:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:45:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:45:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:45:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:45:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:45:12,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:45:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:45:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:45:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:45:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:45:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:45:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-18 06:45:12,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:45:12,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229927000] [2021-12-18 06:45:12,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229927000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:45:12,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:45:12,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 06:45:12,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371430127] [2021-12-18 06:45:12,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:45:12,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 06:45:12,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:45:12,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 06:45:12,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:45:12,632 INFO L87 Difference]: Start difference. First operand 4353 states and 5934 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) [2021-12-18 06:45:14,649 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 [] [2021-12-18 06:45:16,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:18,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:20,666 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 [] [2021-12-18 06:45:24,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:45:24,875 INFO L93 Difference]: Finished difference Result 12942 states and 17887 transitions. [2021-12-18 06:45:24,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 06:45:24,876 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 [2021-12-18 06:45:24,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:45:24,918 INFO L225 Difference]: With dead ends: 12942 [2021-12-18 06:45:24,919 INFO L226 Difference]: Without dead ends: 8648 [2021-12-18 06:45:24,934 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:45:24,935 INFO L933 BasicCegarLoop]: 1273 mSDtfsCounter, 2980 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 3156 mSolverCounterSat, 1222 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3110 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 4382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1222 IncrementalHoareTripleChecker+Valid, 3156 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-12-18 06:45:24,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3110 Valid, 3276 Invalid, 4382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1222 Valid, 3156 Invalid, 4 Unknown, 0 Unchecked, 11.9s Time] [2021-12-18 06:45:24,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8648 states. [2021-12-18 06:45:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8648 to 8039. [2021-12-18 06:45:25,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8039 states, 6014 states have (on average 1.357000332557366) internal successors, (8161), 6206 states have internal predecessors, (8161), 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) [2021-12-18 06:45:25,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8039 states to 8039 states and 11067 transitions. [2021-12-18 06:45:25,293 INFO L78 Accepts]: Start accepts. Automaton has 8039 states and 11067 transitions. Word has length 278 [2021-12-18 06:45:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:45:25,294 INFO L470 AbstractCegarLoop]: Abstraction has 8039 states and 11067 transitions. [2021-12-18 06:45:25,295 INFO L471 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) [2021-12-18 06:45:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand 8039 states and 11067 transitions. [2021-12-18 06:45:25,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-18 06:45:25,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:45:25,299 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:45:25,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 06:45:25,299 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:45:25,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:45:25,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1330073954, now seen corresponding path program 1 times [2021-12-18 06:45:25,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:45:25,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111744632] [2021-12-18 06:45:25,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:45:25,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:45:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:45:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:45:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:25,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:45:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:45:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:45:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:45:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:45:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:45:25,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:45:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:45:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:45:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:45:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:45:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:45:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:25,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:45:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:26,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:26,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:45:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:26,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:45:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:26,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:26,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:45:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:26,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 06:45:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-18 06:45:26,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:45:26,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111744632] [2021-12-18 06:45:26,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111744632] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:45:26,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:45:26,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 06:45:26,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966637888] [2021-12-18 06:45:26,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:45:26,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 06:45:26,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:45:26,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 06:45:26,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-18 06:45:26,148 INFO L87 Difference]: Start difference. First operand 8039 states and 11067 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) [2021-12-18 06:45:28,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:30,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:45:30,199 INFO L93 Difference]: Finished difference Result 8557 states and 11831 transitions. [2021-12-18 06:45:30,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 06:45:30,200 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 [2021-12-18 06:45:30,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:45:30,240 INFO L225 Difference]: With dead ends: 8557 [2021-12-18 06:45:30,240 INFO L226 Difference]: Without dead ends: 8554 [2021-12-18 06:45:30,244 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:45:30,246 INFO L933 BasicCegarLoop]: 1255 mSDtfsCounter, 1638 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 445 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-18 06:45:30,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1735 Valid, 2143 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 997 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-12-18 06:45:30,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2021-12-18 06:45:30,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 8038. [2021-12-18 06:45:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8038 states, 6014 states have (on average 1.3566677751912204) internal successors, (8159), 6205 states have internal predecessors, (8159), 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) [2021-12-18 06:45:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8038 states to 8038 states and 11064 transitions. [2021-12-18 06:45:30,603 INFO L78 Accepts]: Start accepts. Automaton has 8038 states and 11064 transitions. Word has length 279 [2021-12-18 06:45:30,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:45:30,604 INFO L470 AbstractCegarLoop]: Abstraction has 8038 states and 11064 transitions. [2021-12-18 06:45:30,604 INFO L471 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) [2021-12-18 06:45:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 8038 states and 11064 transitions. [2021-12-18 06:45:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-12-18 06:45:30,608 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:45:30,608 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:45:30,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 06:45:30,608 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:45:30,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:45:30,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1717128753, now seen corresponding path program 1 times [2021-12-18 06:45:30,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:45:30,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759191690] [2021-12-18 06:45:30,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:45:30,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:45:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:45:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:45:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:45:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:45:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:45:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:45:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:45:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:45:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:45:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:45:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:45:31,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:45:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:45:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:45:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:45:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:45:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:45:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:45:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 06:45:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:31,290 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-18 06:45:31,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:45:31,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759191690] [2021-12-18 06:45:31,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759191690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:45:31,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:45:31,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 06:45:31,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047940512] [2021-12-18 06:45:31,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:45:31,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 06:45:31,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:45:31,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 06:45:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-18 06:45:31,294 INFO L87 Difference]: Start difference. First operand 8038 states and 11064 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) [2021-12-18 06:45:33,310 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 [] [2021-12-18 06:45:35,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:45:35,463 INFO L93 Difference]: Finished difference Result 8556 states and 11828 transitions. [2021-12-18 06:45:35,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 06:45:35,464 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 [2021-12-18 06:45:35,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:45:35,502 INFO L225 Difference]: With dead ends: 8556 [2021-12-18 06:45:35,503 INFO L226 Difference]: Without dead ends: 8553 [2021-12-18 06:45:35,507 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:45:35,508 INFO L933 BasicCegarLoop]: 1256 mSDtfsCounter, 1610 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 433 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-18 06:45:35,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1706 Valid, 2570 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 1352 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-12-18 06:45:35,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8553 states. [2021-12-18 06:45:35,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8553 to 8037. [2021-12-18 06:45:35,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8037 states, 6014 states have (on average 1.356335217825075) internal successors, (8157), 6204 states have internal predecessors, (8157), 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) [2021-12-18 06:45:35,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8037 states to 8037 states and 11061 transitions. [2021-12-18 06:45:35,903 INFO L78 Accepts]: Start accepts. Automaton has 8037 states and 11061 transitions. Word has length 280 [2021-12-18 06:45:35,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:45:35,904 INFO L470 AbstractCegarLoop]: Abstraction has 8037 states and 11061 transitions. [2021-12-18 06:45:35,905 INFO L471 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) [2021-12-18 06:45:35,905 INFO L276 IsEmpty]: Start isEmpty. Operand 8037 states and 11061 transitions. [2021-12-18 06:45:35,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-12-18 06:45:35,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:45:35,908 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:45:35,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 06:45:35,908 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:45:35,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:45:35,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1691137025, now seen corresponding path program 1 times [2021-12-18 06:45:35,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:45:35,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343396124] [2021-12-18 06:45:35,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:45:35,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:45:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:45:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:45:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:45:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:45:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:45:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:45:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:45:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:45:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:45:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:45:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:45:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:45:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:45:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:45:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:45:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:45:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:45:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:45:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 06:45:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:36,467 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-18 06:45:36,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:45:36,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343396124] [2021-12-18 06:45:36,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343396124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:45:36,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:45:36,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 06:45:36,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137308205] [2021-12-18 06:45:36,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:45:36,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 06:45:36,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:45:36,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 06:45:36,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-18 06:45:36,471 INFO L87 Difference]: Start difference. First operand 8037 states and 11061 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) [2021-12-18 06:45:38,488 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 [] [2021-12-18 06:45:40,498 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 [] [2021-12-18 06:45:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:45:42,370 INFO L93 Difference]: Finished difference Result 8555 states and 11825 transitions. [2021-12-18 06:45:42,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 06:45:42,370 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 [2021-12-18 06:45:42,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:45:42,406 INFO L225 Difference]: With dead ends: 8555 [2021-12-18 06:45:42,406 INFO L226 Difference]: Without dead ends: 8509 [2021-12-18 06:45:42,413 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:45:42,414 INFO L933 BasicCegarLoop]: 1250 mSDtfsCounter, 2133 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 850 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2231 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-18 06:45:42,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2231 Valid, 2748 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 1083 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2021-12-18 06:45:42,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8509 states. [2021-12-18 06:45:42,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8509 to 7991. [2021-12-18 06:45:42,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7991 states, 5984 states have (on average 1.3564505347593583) internal successors, (8117), 6173 states have internal predecessors, (8117), 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) [2021-12-18 06:45:42,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7991 states to 7991 states and 10992 transitions. [2021-12-18 06:45:42,772 INFO L78 Accepts]: Start accepts. Automaton has 7991 states and 10992 transitions. Word has length 281 [2021-12-18 06:45:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:45:42,773 INFO L470 AbstractCegarLoop]: Abstraction has 7991 states and 10992 transitions. [2021-12-18 06:45:42,773 INFO L471 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) [2021-12-18 06:45:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 7991 states and 10992 transitions. [2021-12-18 06:45:42,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-12-18 06:45:42,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:45:42,777 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:45:42,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 06:45:42,778 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:45:42,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:45:42,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1856953383, now seen corresponding path program 1 times [2021-12-18 06:45:42,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:45:42,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040779038] [2021-12-18 06:45:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:45:42,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:45:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:45:43,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:45:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:45:43,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:45:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:45:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:45:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:45:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:45:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:45:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:45:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:45:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:45:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:45:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:45:43,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:45:43,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:45:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:45:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:45:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:45:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-18 06:45:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2021-12-18 06:45:43,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:45:43,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040779038] [2021-12-18 06:45:43,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040779038] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:45:43,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:45:43,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 06:45:43,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905384389] [2021-12-18 06:45:43,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:45:43,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 06:45:43,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:45:43,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 06:45:43,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:45:43,408 INFO L87 Difference]: Start difference. First operand 7991 states and 10992 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) [2021-12-18 06:45:45,425 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 [] [2021-12-18 06:45:47,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:49,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:52,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:45:52,548 INFO L93 Difference]: Finished difference Result 16324 states and 22471 transitions. [2021-12-18 06:45:52,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 06:45:52,549 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 [2021-12-18 06:45:52,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:45:52,578 INFO L225 Difference]: With dead ends: 16324 [2021-12-18 06:45:52,578 INFO L226 Difference]: Without dead ends: 8355 [2021-12-18 06:45:52,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-18 06:45:52,610 INFO L933 BasicCegarLoop]: 2077 mSDtfsCounter, 2143 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 964 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 3810 SdHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 964 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-12-18 06:45:52,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2256 Valid, 3810 Invalid, 3350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [964 Valid, 2383 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2021-12-18 06:45:52,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8355 states. [2021-12-18 06:45:52,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8355 to 7652. [2021-12-18 06:45:52,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7652 states, 5790 states have (on average 1.3585492227979274) internal successors, (7866), 5938 states have internal predecessors, (7866), 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) [2021-12-18 06:45:52,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7652 states to 7652 states and 10442 transitions. [2021-12-18 06:45:52,920 INFO L78 Accepts]: Start accepts. Automaton has 7652 states and 10442 transitions. Word has length 289 [2021-12-18 06:45:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:45:52,921 INFO L470 AbstractCegarLoop]: Abstraction has 7652 states and 10442 transitions. [2021-12-18 06:45:52,921 INFO L471 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) [2021-12-18 06:45:52,921 INFO L276 IsEmpty]: Start isEmpty. Operand 7652 states and 10442 transitions. [2021-12-18 06:45:52,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-12-18 06:45:52,926 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:45:52,927 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:45:52,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 06:45:52,927 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:45:52,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:45:52,928 INFO L85 PathProgramCache]: Analyzing trace with hash -570833554, now seen corresponding path program 1 times [2021-12-18 06:45:52,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:45:52,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893919750] [2021-12-18 06:45:52,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:45:52,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:45:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:45:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:45:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:45:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:45:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:45:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:45:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:45:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:45:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:45:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:45:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:45:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:45:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:45:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:45:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:45:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:45:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:45:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:45:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:45:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 06:45:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 06:45:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:45:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:45:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-18 06:45:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-18 06:45:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:45:53,610 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2021-12-18 06:45:53,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:45:53,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893919750] [2021-12-18 06:45:53,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893919750] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:45:53,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:45:53,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 06:45:53,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299082583] [2021-12-18 06:45:53,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:45:53,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 06:45:53,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:45:53,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 06:45:53,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:45:53,613 INFO L87 Difference]: Start difference. First operand 7652 states and 10442 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) [2021-12-18 06:45:55,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:57,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:45:59,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:01,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:05,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:46:05,673 INFO L93 Difference]: Finished difference Result 20653 states and 28353 transitions. [2021-12-18 06:46:05,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 06:46:05,674 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 [2021-12-18 06:46:05,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:46:05,730 INFO L225 Difference]: With dead ends: 20653 [2021-12-18 06:46:05,730 INFO L226 Difference]: Without dead ends: 13061 [2021-12-18 06:46:05,763 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:46:05,763 INFO L933 BasicCegarLoop]: 1891 mSDtfsCounter, 2543 mSDsluCounter, 3047 mSDsCounter, 0 mSdLazyCounter, 3523 mSolverCounterSat, 1028 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2677 SdHoareTripleChecker+Valid, 4938 SdHoareTripleChecker+Invalid, 4555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1028 IncrementalHoareTripleChecker+Valid, 3523 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2021-12-18 06:46:05,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2677 Valid, 4938 Invalid, 4555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1028 Valid, 3523 Invalid, 4 Unknown, 0 Unchecked, 11.6s Time] [2021-12-18 06:46:05,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13061 states. [2021-12-18 06:46:06,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13061 to 12177. [2021-12-18 06:46:06,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12177 states, 9317 states have (on average 1.3727594719330256) internal successors, (12790), 9554 states have internal predecessors, (12790), 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) [2021-12-18 06:46:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12177 states to 12177 states and 16738 transitions. [2021-12-18 06:46:06,386 INFO L78 Accepts]: Start accepts. Automaton has 12177 states and 16738 transitions. Word has length 320 [2021-12-18 06:46:06,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:46:06,387 INFO L470 AbstractCegarLoop]: Abstraction has 12177 states and 16738 transitions. [2021-12-18 06:46:06,387 INFO L471 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) [2021-12-18 06:46:06,387 INFO L276 IsEmpty]: Start isEmpty. Operand 12177 states and 16738 transitions. [2021-12-18 06:46:06,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-12-18 06:46:06,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:46:06,393 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:46:06,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 06:46:06,394 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:46:06,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:46:06,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1109559346, now seen corresponding path program 1 times [2021-12-18 06:46:06,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:46:06,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54002273] [2021-12-18 06:46:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:46:06,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:46:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:46:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:46:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:46:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:46:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:06,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:46:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:46:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:46:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:46:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:46:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:46:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:46:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:46:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:46:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:46:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:46:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:46:06,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:46:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:46:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 06:46:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 06:46:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 06:46:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-18 06:46:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:06,898 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 830 trivial. 0 not checked. [2021-12-18 06:46:06,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:46:06,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54002273] [2021-12-18 06:46:06,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54002273] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:46:06,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:46:06,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 06:46:06,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890591987] [2021-12-18 06:46:06,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:46:06,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 06:46:06,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:46:06,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 06:46:06,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:46:06,901 INFO L87 Difference]: Start difference. First operand 12177 states and 16738 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) [2021-12-18 06:46:08,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:10,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:12,935 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 [] [2021-12-18 06:46:17,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:46:17,670 INFO L93 Difference]: Finished difference Result 30010 states and 41347 transitions. [2021-12-18 06:46:17,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 06:46:17,670 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 [2021-12-18 06:46:17,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:46:17,744 INFO L225 Difference]: With dead ends: 30010 [2021-12-18 06:46:17,745 INFO L226 Difference]: Without dead ends: 17893 [2021-12-18 06:46:17,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-18 06:46:17,779 INFO L933 BasicCegarLoop]: 2216 mSDtfsCounter, 2456 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 3958 mSolverCounterSat, 1199 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2601 SdHoareTripleChecker+Valid, 5304 SdHoareTripleChecker+Invalid, 5160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1199 IncrementalHoareTripleChecker+Valid, 3958 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-12-18 06:46:17,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2601 Valid, 5304 Invalid, 5160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1199 Valid, 3958 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2021-12-18 06:46:17,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17893 states. [2021-12-18 06:46:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17893 to 16711. [2021-12-18 06:46:18,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16711 states, 12849 states have (on average 1.3790956494668847) internal successors, (17720), 13175 states have internal predecessors, (17720), 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) [2021-12-18 06:46:18,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16711 states to 16711 states and 23050 transitions. [2021-12-18 06:46:18,503 INFO L78 Accepts]: Start accepts. Automaton has 16711 states and 23050 transitions. Word has length 330 [2021-12-18 06:46:18,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:46:18,504 INFO L470 AbstractCegarLoop]: Abstraction has 16711 states and 23050 transitions. [2021-12-18 06:46:18,504 INFO L471 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) [2021-12-18 06:46:18,505 INFO L276 IsEmpty]: Start isEmpty. Operand 16711 states and 23050 transitions. [2021-12-18 06:46:18,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-12-18 06:46:18,514 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:46:18,515 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:46:18,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 06:46:18,515 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:46:18,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:46:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1190393112, now seen corresponding path program 1 times [2021-12-18 06:46:18,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:46:18,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201854142] [2021-12-18 06:46:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:46:18,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:46:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:46:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:46:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:46:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:46:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:46:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:46:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:46:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:46:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:46:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:46:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:46:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:46:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:46:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:46:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:46:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:46:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:46:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:46:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-18 06:46:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 06:46:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-18 06:46:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 06:46:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 06:46:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-12-18 06:46:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-18 06:46:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 06:46:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2021-12-18 06:46:19,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:46:19,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201854142] [2021-12-18 06:46:19,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201854142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:46:19,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:46:19,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 06:46:19,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111298085] [2021-12-18 06:46:19,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:46:19,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 06:46:19,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:46:19,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 06:46:19,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-12-18 06:46:19,134 INFO L87 Difference]: Start difference. First operand 16711 states and 23050 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) [2021-12-18 06:46:21,158 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 [] [2021-12-18 06:46:23,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:25,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:27,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:29,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:33,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:46:33,629 INFO L93 Difference]: Finished difference Result 36288 states and 50373 transitions. [2021-12-18 06:46:33,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 06:46:33,630 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 [2021-12-18 06:46:33,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:46:33,707 INFO L225 Difference]: With dead ends: 36288 [2021-12-18 06:46:33,707 INFO L226 Difference]: Without dead ends: 19637 [2021-12-18 06:46:33,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2021-12-18 06:46:33,745 INFO L933 BasicCegarLoop]: 1351 mSDtfsCounter, 2653 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 3343 mSolverCounterSat, 1153 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2749 SdHoareTripleChecker+Valid, 4326 SdHoareTripleChecker+Invalid, 4501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 3343 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-12-18 06:46:33,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2749 Valid, 4326 Invalid, 4501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 3343 Invalid, 5 Unknown, 0 Unchecked, 13.7s Time] [2021-12-18 06:46:33,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19637 states. [2021-12-18 06:46:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19637 to 16691. [2021-12-18 06:46:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16691 states, 12829 states have (on average 1.3790630602541118) internal successors, (17692), 13161 states have internal predecessors, (17692), 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) [2021-12-18 06:46:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16691 states to 16691 states and 23022 transitions. [2021-12-18 06:46:34,558 INFO L78 Accepts]: Start accepts. Automaton has 16691 states and 23022 transitions. Word has length 371 [2021-12-18 06:46:34,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:46:34,559 INFO L470 AbstractCegarLoop]: Abstraction has 16691 states and 23022 transitions. [2021-12-18 06:46:34,559 INFO L471 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) [2021-12-18 06:46:34,559 INFO L276 IsEmpty]: Start isEmpty. Operand 16691 states and 23022 transitions. [2021-12-18 06:46:34,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-12-18 06:46:34,569 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:46:34,570 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:46:34,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 06:46:34,570 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:46:34,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:46:34,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1605253247, now seen corresponding path program 1 times [2021-12-18 06:46:34,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:46:34,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736819000] [2021-12-18 06:46:34,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:46:34,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:46:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:46:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:46:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:46:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:46:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:46:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:46:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:46:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:34,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:46:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:46:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:46:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:46:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:46:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:46:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:46:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:46:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:46:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:46:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:46:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 06:46:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 06:46:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-18 06:46:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-18 06:46:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-18 06:46:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 06:46:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:35,199 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2021-12-18 06:46:35,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:46:35,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736819000] [2021-12-18 06:46:35,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736819000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:46:35,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:46:35,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 06:46:35,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311783881] [2021-12-18 06:46:35,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:46:35,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 06:46:35,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:46:35,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 06:46:35,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-12-18 06:46:35,202 INFO L87 Difference]: Start difference. First operand 16691 states and 23022 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) [2021-12-18 06:46:37,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:39,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:41,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:43,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:46:48,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:46:48,447 INFO L93 Difference]: Finished difference Result 32179 states and 45865 transitions. [2021-12-18 06:46:48,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 06:46:48,452 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 [2021-12-18 06:46:48,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:46:48,536 INFO L225 Difference]: With dead ends: 32179 [2021-12-18 06:46:48,537 INFO L226 Difference]: Without dead ends: 24868 [2021-12-18 06:46:48,567 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:46:48,568 INFO L933 BasicCegarLoop]: 1642 mSDtfsCounter, 1650 mSDsluCounter, 6395 mSDsCounter, 0 mSdLazyCounter, 5152 mSolverCounterSat, 461 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 8037 SdHoareTripleChecker+Invalid, 5617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 5152 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-12-18 06:46:48,568 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1787 Valid, 8037 Invalid, 5617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 5152 Invalid, 4 Unknown, 0 Unchecked, 12.5s Time] [2021-12-18 06:46:48,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24868 states. [2021-12-18 06:46:49,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24868 to 16682. [2021-12-18 06:46:49,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16682 states, 12821 states have (on average 1.3786756103268076) internal successors, (17676), 13152 states have internal predecessors, (17676), 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) [2021-12-18 06:46:49,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16682 states to 16682 states and 23005 transitions. [2021-12-18 06:46:49,499 INFO L78 Accepts]: Start accepts. Automaton has 16682 states and 23005 transitions. Word has length 367 [2021-12-18 06:46:49,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:46:49,499 INFO L470 AbstractCegarLoop]: Abstraction has 16682 states and 23005 transitions. [2021-12-18 06:46:49,500 INFO L471 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) [2021-12-18 06:46:49,500 INFO L276 IsEmpty]: Start isEmpty. Operand 16682 states and 23005 transitions. [2021-12-18 06:46:49,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-12-18 06:46:49,511 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:46:49,511 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:46:49,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 06:46:49,512 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:46:49,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:46:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1456657445, now seen corresponding path program 1 times [2021-12-18 06:46:49,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:46:49,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126357068] [2021-12-18 06:46:49,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:46:49,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:46:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:46:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:46:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:46:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:46:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:46:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:46:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:46:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:46:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:46:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:46:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:46:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:46:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:49,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:46:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:46:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:46:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:46:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:46:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:46:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 06:46:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 06:46:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:50,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-18 06:46:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-18 06:46:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-18 06:46:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 06:46:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 06:46:50,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:50,224 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2021-12-18 06:46:50,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:46:50,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126357068] [2021-12-18 06:46:50,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126357068] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:46:50,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641854136] [2021-12-18 06:46:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:46:50,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:46:50,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:46:50,227 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 06:46:50,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 06:46:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:52,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 4611 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-18 06:46:52,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:46:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 733 trivial. 0 not checked. [2021-12-18 06:46:52,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 06:46:52,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641854136] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:46:52,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 06:46:52,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2021-12-18 06:46:52,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625827739] [2021-12-18 06:46:52,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:46:52,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 06:46:52,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:46:52,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 06:46:52,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-18 06:46:52,664 INFO L87 Difference]: Start difference. First operand 16682 states and 23005 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) [2021-12-18 06:46:53,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:46:53,675 INFO L93 Difference]: Finished difference Result 34109 states and 47107 transitions. [2021-12-18 06:46:53,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 06:46:53,677 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 [2021-12-18 06:46:53,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:46:53,749 INFO L225 Difference]: With dead ends: 34109 [2021-12-18 06:46:53,750 INFO L226 Difference]: Without dead ends: 17085 [2021-12-18 06:46:53,796 INFO L932 BasicCegarLoop]: 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 [2021-12-18 06:46:53,797 INFO L933 BasicCegarLoop]: 1360 mSDtfsCounter, 144 mSDsluCounter, 2582 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 3942 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 [2021-12-18 06:46:53,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 3942 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 06:46:53,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17085 states. [2021-12-18 06:46:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17085 to 17038. [2021-12-18 06:46:54,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17038 states, 13099 states have (on average 1.3744560653484998) internal successors, (18004), 13447 states have internal predecessors, (18004), 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) [2021-12-18 06:46:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17038 states to 17038 states and 23475 transitions. [2021-12-18 06:46:54,607 INFO L78 Accepts]: Start accepts. Automaton has 17038 states and 23475 transitions. Word has length 368 [2021-12-18 06:46:54,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:46:54,608 INFO L470 AbstractCegarLoop]: Abstraction has 17038 states and 23475 transitions. [2021-12-18 06:46:54,608 INFO L471 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) [2021-12-18 06:46:54,608 INFO L276 IsEmpty]: Start isEmpty. Operand 17038 states and 23475 transitions. [2021-12-18 06:46:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-12-18 06:46:54,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:46:54,620 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:46:54,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 06:46:54,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-18 06:46:54,836 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:46:54,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:46:54,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1556071909, now seen corresponding path program 1 times [2021-12-18 06:46:54,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:46:54,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990737473] [2021-12-18 06:46:54,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:46:54,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:46:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:46:55,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:46:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:46:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:46:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:46:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:46:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:46:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:46:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-18 06:46:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 06:46:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 06:46:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:46:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-18 06:46:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 06:46:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:46:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 06:46:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-18 06:46:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:46:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-18 06:46:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-18 06:46:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:46:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2021-12-18 06:46:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-18 06:46:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:46:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-18 06:46:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-18 06:46:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:46:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-18 06:46:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:46:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2021-12-18 06:46:55,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:46:55,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990737473] [2021-12-18 06:46:55,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990737473] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:46:55,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030464718] [2021-12-18 06:46:55,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:46:55,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:46:55,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:46:55,554 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) [2021-12-18 06:46:55,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 06:47:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:02,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 4610 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 06:47:02,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:47:03,145 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2021-12-18 06:47:03,145 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 06:47:03,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030464718] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:47:03,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 06:47:03,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2021-12-18 06:47:03,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509060944] [2021-12-18 06:47:03,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:47:03,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:47:03,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:47:03,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:47:03,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-18 06:47:03,147 INFO L87 Difference]: Start difference. First operand 17038 states and 23475 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) [2021-12-18 06:47:03,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:47:03,735 INFO L93 Difference]: Finished difference Result 34120 states and 47139 transitions. [2021-12-18 06:47:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 06:47:03,736 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 [2021-12-18 06:47:03,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:47:03,794 INFO L225 Difference]: With dead ends: 34120 [2021-12-18 06:47:03,795 INFO L226 Difference]: Without dead ends: 17063 [2021-12-18 06:47:03,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 474 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-12-18 06:47:03,843 INFO L933 BasicCegarLoop]: 1323 mSDtfsCounter, 6 mSDsluCounter, 5267 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6590 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 06:47:03,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 6590 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 06:47:03,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17063 states. [2021-12-18 06:47:04,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17063 to 17063. [2021-12-18 06:47:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17063 states, 13124 states have (on average 1.373742761353246) internal successors, (18029), 13472 states have internal predecessors, (18029), 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) [2021-12-18 06:47:04,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17063 states to 17063 states and 23500 transitions. [2021-12-18 06:47:04,628 INFO L78 Accepts]: Start accepts. Automaton has 17063 states and 23500 transitions. Word has length 368 [2021-12-18 06:47:04,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:47:04,628 INFO L470 AbstractCegarLoop]: Abstraction has 17063 states and 23500 transitions. [2021-12-18 06:47:04,628 INFO L471 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) [2021-12-18 06:47:04,628 INFO L276 IsEmpty]: Start isEmpty. Operand 17063 states and 23500 transitions. [2021-12-18 06:47:04,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-12-18 06:47:04,640 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:47:04,640 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:47:04,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 06:47:04,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-18 06:47:04,868 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:47:04,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:47:04,868 INFO L85 PathProgramCache]: Analyzing trace with hash -928259058, now seen corresponding path program 1 times [2021-12-18 06:47:04,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:47:04,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559422385] [2021-12-18 06:47:04,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:47:04,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:47:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:47:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:47:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:47:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:47:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:47:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:47:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:47:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:47:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 06:47:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-18 06:47:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 06:47:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-18 06:47:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 06:47:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-18 06:47:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 06:47:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-18 06:47:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-18 06:47:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 06:47:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-18 06:47:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 06:47:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-18 06:47:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-18 06:47:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-18 06:47:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-18 06:47:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-12-18 06:47:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 2 proven. 81 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2021-12-18 06:47:05,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:47:05,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559422385] [2021-12-18 06:47:05,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559422385] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:47:05,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774701836] [2021-12-18 06:47:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:47:05,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:47:05,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:47:05,723 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) [2021-12-18 06:47:05,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 06:47:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:18,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 4745 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-18 06:47:18,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:47:18,934 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 208 proven. 1 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2021-12-18 06:47:18,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 06:47:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 2 proven. 81 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2021-12-18 06:47:19,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774701836] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 06:47:19,725 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 06:47:19,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 18 [2021-12-18 06:47:19,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167913731] [2021-12-18 06:47:19,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 06:47:19,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-18 06:47:19,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:47:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-18 06:47:19,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-12-18 06:47:19,727 INFO L87 Difference]: Start difference. First operand 17063 states and 23500 transitions. Second operand has 18 states, 16 states have (on average 11.3125) internal successors, (181), 13 states have internal predecessors, (181), 4 states have call successors, (86), 7 states have call predecessors, (86), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2021-12-18 06:47:21,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:47:23,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:47:31,212 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 [] [2021-12-18 06:47:33,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:47:33,029 INFO L93 Difference]: Finished difference Result 35227 states and 48641 transitions. [2021-12-18 06:47:33,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 06:47:33,030 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 11.3125) internal successors, (181), 13 states have internal predecessors, (181), 4 states have call successors, (86), 7 states have call predecessors, (86), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) Word has length 377 [2021-12-18 06:47:33,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:47:33,096 INFO L225 Difference]: With dead ends: 35227 [2021-12-18 06:47:33,096 INFO L226 Difference]: Without dead ends: 18145 [2021-12-18 06:47:33,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 855 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2021-12-18 06:47:33,141 INFO L933 BasicCegarLoop]: 1198 mSDtfsCounter, 1341 mSDsluCounter, 7259 mSDsCounter, 0 mSdLazyCounter, 7553 mSolverCounterSat, 774 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 8457 SdHoareTripleChecker+Invalid, 8330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 774 IncrementalHoareTripleChecker+Valid, 7553 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-12-18 06:47:33,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1408 Valid, 8457 Invalid, 8330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [774 Valid, 7553 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2021-12-18 06:47:33,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18145 states. [2021-12-18 06:47:33,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18145 to 17093. [2021-12-18 06:47:33,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17093 states, 13152 states have (on average 1.3729470802919708) internal successors, (18057), 13500 states have internal predecessors, (18057), 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) [2021-12-18 06:47:33,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17093 states to 17093 states and 23530 transitions. [2021-12-18 06:47:33,799 INFO L78 Accepts]: Start accepts. Automaton has 17093 states and 23530 transitions. Word has length 377 [2021-12-18 06:47:33,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:47:33,799 INFO L470 AbstractCegarLoop]: Abstraction has 17093 states and 23530 transitions. [2021-12-18 06:47:33,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 11.3125) internal successors, (181), 13 states have internal predecessors, (181), 4 states have call successors, (86), 7 states have call predecessors, (86), 6 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2021-12-18 06:47:33,800 INFO L276 IsEmpty]: Start isEmpty. Operand 17093 states and 23530 transitions. [2021-12-18 06:47:33,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-12-18 06:47:33,809 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:47:33,810 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:47:33,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-18 06:47:34,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:47:34,024 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:47:34,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:47:34,024 INFO L85 PathProgramCache]: Analyzing trace with hash -998233733, now seen corresponding path program 2 times [2021-12-18 06:47:34,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:47:34,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441337335] [2021-12-18 06:47:34,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:47:34,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:47:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:47:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:47:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:47:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:47:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:47:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:47:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:47:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:47:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 06:47:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 06:47:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 06:47:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 06:47:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:47:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 06:47:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 06:47:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 06:47:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:47:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:47:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 06:47:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 06:47:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-18 06:47:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 06:47:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-12-18 06:47:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-18 06:47:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-18 06:47:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 1052 trivial. 0 not checked. [2021-12-18 06:47:34,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:47:34,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441337335] [2021-12-18 06:47:34,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441337335] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:47:34,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258065232] [2021-12-18 06:47:34,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 06:47:34,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:47:34,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:47:34,837 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) [2021-12-18 06:47:34,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 06:47:40,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-18 06:47:40,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 06:47:40,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 3069 conjuncts, 76 conjunts are in the unsatisfiable core [2021-12-18 06:47:40,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:47:41,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1161 trivial. 0 not checked. [2021-12-18 06:47:41,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 06:47:41,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258065232] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:47:41,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 06:47:41,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [13] total 31 [2021-12-18 06:47:41,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660406895] [2021-12-18 06:47:41,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:47:41,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-18 06:47:41,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:47:41,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-18 06:47:41,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=864, Unknown=0, NotChecked=0, Total=930 [2021-12-18 06:47:41,831 INFO L87 Difference]: Start difference. First operand 17093 states and 23530 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) [2021-12-18 06:47:43,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:47:43,229 INFO L93 Difference]: Finished difference Result 37948 states and 52866 transitions. [2021-12-18 06:47:43,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-18 06:47:43,229 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 [2021-12-18 06:47:43,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:47:43,403 INFO L225 Difference]: With dead ends: 37948 [2021-12-18 06:47:43,403 INFO L226 Difference]: Without dead ends: 20904 [2021-12-18 06:47:43,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=180, Invalid=1800, Unknown=0, NotChecked=0, Total=1980 [2021-12-18 06:47:43,428 INFO L933 BasicCegarLoop]: 1649 mSDtfsCounter, 623 mSDsluCounter, 29000 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 30649 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-18 06:47:43,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [636 Valid, 30649 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-18 06:47:43,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20904 states. [2021-12-18 06:47:43,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20904 to 17241. [2021-12-18 06:47:43,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17241 states, 13280 states have (on average 1.3689006024096386) internal successors, (18179), 13628 states have internal predecessors, (18179), 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) [2021-12-18 06:47:44,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17241 states to 17241 states and 23684 transitions. [2021-12-18 06:47:44,046 INFO L78 Accepts]: Start accepts. Automaton has 17241 states and 23684 transitions. Word has length 386 [2021-12-18 06:47:44,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:47:44,047 INFO L470 AbstractCegarLoop]: Abstraction has 17241 states and 23684 transitions. [2021-12-18 06:47:44,047 INFO L471 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) [2021-12-18 06:47:44,047 INFO L276 IsEmpty]: Start isEmpty. Operand 17241 states and 23684 transitions. [2021-12-18 06:47:44,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-12-18 06:47:44,058 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:47:44,058 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:47:44,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-18 06:47:44,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-18 06:47:44,284 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:47:44,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:47:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash -554333059, now seen corresponding path program 1 times [2021-12-18 06:47:44,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:47:44,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399925065] [2021-12-18 06:47:44,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:47:44,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:47:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:47:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:47:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:47:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:47:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:47:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:47:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:47:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:47:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 06:47:44,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 06:47:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 06:47:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 06:47:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:47:44,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 06:47:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 06:47:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 06:47:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:47:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:47:44,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 06:47:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 06:47:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-18 06:47:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:45,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:45,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 06:47:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:45,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-12-18 06:47:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:45,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-18 06:47:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:45,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-18 06:47:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1177 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2021-12-18 06:47:45,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:47:45,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399925065] [2021-12-18 06:47:45,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399925065] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:47:45,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:47:45,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 06:47:45,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405379809] [2021-12-18 06:47:45,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:47:45,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 06:47:45,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:47:45,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 06:47:45,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-18 06:47:45,069 INFO L87 Difference]: Start difference. First operand 17241 states and 23684 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) [2021-12-18 06:47:47,087 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 [] [2021-12-18 06:47:49,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:47:51,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:47:53,118 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 [] [2021-12-18 06:47:57,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:47:57,177 INFO L93 Difference]: Finished difference Result 35543 states and 48803 transitions. [2021-12-18 06:47:57,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 06:47:57,178 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 [2021-12-18 06:47:57,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:47:57,224 INFO L225 Difference]: With dead ends: 35543 [2021-12-18 06:47:57,224 INFO L226 Difference]: Without dead ends: 18369 [2021-12-18 06:47:57,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-12-18 06:47:57,251 INFO L933 BasicCegarLoop]: 1210 mSDtfsCounter, 1205 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 3712 mSolverCounterSat, 575 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 4571 SdHoareTripleChecker+Invalid, 4291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 3712 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-12-18 06:47:57,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 4571 Invalid, 4291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 3712 Invalid, 4 Unknown, 0 Unchecked, 11.3s Time] [2021-12-18 06:47:57,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18369 states. [2021-12-18 06:47:57,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18369 to 17221. [2021-12-18 06:47:57,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17221 states, 13264 states have (on average 1.3675361881785284) internal successors, (18139), 13604 states have internal predecessors, (18139), 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) [2021-12-18 06:47:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17221 states to 17221 states and 23640 transitions. [2021-12-18 06:47:57,842 INFO L78 Accepts]: Start accepts. Automaton has 17221 states and 23640 transitions. Word has length 386 [2021-12-18 06:47:57,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:47:57,842 INFO L470 AbstractCegarLoop]: Abstraction has 17221 states and 23640 transitions. [2021-12-18 06:47:57,842 INFO L471 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) [2021-12-18 06:47:57,842 INFO L276 IsEmpty]: Start isEmpty. Operand 17221 states and 23640 transitions. [2021-12-18 06:47:57,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-12-18 06:47:57,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:47:57,854 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:47:57,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 06:47:57,854 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:47:57,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:47:57,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1562894007, now seen corresponding path program 1 times [2021-12-18 06:47:57,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:47:57,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884094466] [2021-12-18 06:47:57,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:47:57,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:47:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:47:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:47:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:47:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:47:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:47:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:47:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:47:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:47:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 06:47:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-18 06:47:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-18 06:47:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-18 06:47:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:47:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 06:47:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 06:47:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 06:47:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-18 06:47:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:47:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 06:47:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-18 06:47:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:47:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-18 06:47:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:47:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 06:47:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:47:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-12-18 06:47:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2021-12-18 06:47:58,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-12-18 06:47:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:47:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2021-12-18 06:47:58,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:47:58,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884094466] [2021-12-18 06:47:58,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884094466] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:47:58,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195861674] [2021-12-18 06:47:58,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:47:58,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:47:58,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:47:58,699 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) [2021-12-18 06:47:58,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 06:48:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:12,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 4913 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-18 06:48:12,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:48:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 248 proven. 3 refuted. 0 times theorem prover too weak. 939 trivial. 0 not checked. [2021-12-18 06:48:13,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 06:48:14,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2021-12-18 06:48:14,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195861674] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 06:48:14,497 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 06:48:14,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 21 [2021-12-18 06:48:14,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106064943] [2021-12-18 06:48:14,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 06:48:14,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-12-18 06:48:14,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:48:14,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-12-18 06:48:14,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2021-12-18 06:48:14,500 INFO L87 Difference]: Start difference. First operand 17221 states and 23640 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) [2021-12-18 06:48:16,514 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 [] [2021-12-18 06:48:18,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:48:20,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:48:29,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:48:29,952 INFO L93 Difference]: Finished difference Result 35517 states and 48890 transitions. [2021-12-18 06:48:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-18 06:48:29,953 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 [2021-12-18 06:48:29,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:48:30,008 INFO L225 Difference]: With dead ends: 35517 [2021-12-18 06:48:30,008 INFO L226 Difference]: Without dead ends: 18274 [2021-12-18 06:48:30,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 919 GetRequests, 877 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=230, Invalid=1330, Unknown=0, NotChecked=0, Total=1560 [2021-12-18 06:48:30,046 INFO L933 BasicCegarLoop]: 1201 mSDtfsCounter, 1051 mSDsluCounter, 6919 mSDsCounter, 0 mSdLazyCounter, 7417 mSolverCounterSat, 555 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 8120 SdHoareTripleChecker+Invalid, 7975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 7417 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2021-12-18 06:48:30,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 8120 Invalid, 7975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 7417 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2021-12-18 06:48:30,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18274 states. [2021-12-18 06:48:30,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18274 to 17246. [2021-12-18 06:48:30,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17246 states, 13289 states have (on average 1.3668447588230868) internal successors, (18164), 13629 states have internal predecessors, (18164), 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) [2021-12-18 06:48:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17246 states to 17246 states and 23665 transitions. [2021-12-18 06:48:30,739 INFO L78 Accepts]: Start accepts. Automaton has 17246 states and 23665 transitions. Word has length 390 [2021-12-18 06:48:30,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:48:30,739 INFO L470 AbstractCegarLoop]: Abstraction has 17246 states and 23665 transitions. [2021-12-18 06:48:30,739 INFO L471 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) [2021-12-18 06:48:30,739 INFO L276 IsEmpty]: Start isEmpty. Operand 17246 states and 23665 transitions. [2021-12-18 06:48:30,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2021-12-18 06:48:30,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:48:30,748 INFO L514 BasicCegarLoop]: 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] [2021-12-18 06:48:30,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-18 06:48:30,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:48:30,964 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:48:30,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:48:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1818719996, now seen corresponding path program 2 times [2021-12-18 06:48:30,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:48:30,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633450129] [2021-12-18 06:48:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:48:30,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:48:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:48:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:48:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:48:31,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:48:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:48:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:48:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:48:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:48:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:48:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:48:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:48:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:48:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:48:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:48:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:48:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:48:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:48:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-18 06:48:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 06:48:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-18 06:48:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 06:48:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-18 06:48:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 06:48:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-18 06:48:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-18 06:48:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2021-12-18 06:48:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:48:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-18 06:48:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-12-18 06:48:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-12-18 06:48:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:48:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-18 06:48:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:48:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-18 06:48:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:48:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-18 06:48:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-18 06:48:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-12-18 06:48:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:48:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1469 backedges. 2 proven. 182 refuted. 0 times theorem prover too weak. 1285 trivial. 0 not checked. [2021-12-18 06:48:31,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:48:31,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633450129] [2021-12-18 06:48:31,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633450129] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:48:31,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082975135] [2021-12-18 06:48:31,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 06:48:31,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:48:31,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:48:31,776 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) [2021-12-18 06:48:31,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 06:49:16,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 06:49:16,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 06:49:16,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 5048 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-18 06:49:16,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:49:17,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1469 backedges. 304 proven. 6 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked. [2021-12-18 06:49:17,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 06:49:18,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1469 backedges. 2 proven. 182 refuted. 0 times theorem prover too weak. 1285 trivial. 0 not checked. [2021-12-18 06:49:18,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082975135] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 06:49:18,192 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 06:49:18,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 23 [2021-12-18 06:49:18,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950850893] [2021-12-18 06:49:18,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 06:49:18,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-12-18 06:49:18,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:49:18,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-18 06:49:18,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2021-12-18 06:49:18,195 INFO L87 Difference]: Start difference. First operand 17246 states and 23665 transitions. Second operand has 23 states, 21 states have (on average 8.666666666666666) internal successors, (182), 18 states have internal predecessors, (182), 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) [2021-12-18 06:49:20,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:49:22,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:49:31,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:49:31,593 INFO L93 Difference]: Finished difference Result 35567 states and 48940 transitions. [2021-12-18 06:49:31,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-18 06:49:31,594 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 8.666666666666666) internal successors, (182), 18 states have internal predecessors, (182), 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 399 [2021-12-18 06:49:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:49:31,656 INFO L225 Difference]: With dead ends: 35567 [2021-12-18 06:49:31,656 INFO L226 Difference]: Without dead ends: 18299 [2021-12-18 06:49:31,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 893 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=251, Invalid=1471, Unknown=0, NotChecked=0, Total=1722 [2021-12-18 06:49:31,696 INFO L933 BasicCegarLoop]: 1198 mSDtfsCounter, 1727 mSDsluCounter, 6888 mSDsCounter, 0 mSdLazyCounter, 7145 mSolverCounterSat, 1032 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1794 SdHoareTripleChecker+Valid, 8086 SdHoareTripleChecker+Invalid, 8179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1032 IncrementalHoareTripleChecker+Valid, 7145 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2021-12-18 06:49:31,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1794 Valid, 8086 Invalid, 8179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1032 Valid, 7145 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2021-12-18 06:49:31,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18299 states. [2021-12-18 06:49:32,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18299 to 17271. [2021-12-18 06:49:32,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17271 states, 13314 states have (on average 1.3661559260928346) internal successors, (18189), 13654 states have internal predecessors, (18189), 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) [2021-12-18 06:49:32,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17271 states to 17271 states and 23690 transitions. [2021-12-18 06:49:32,372 INFO L78 Accepts]: Start accepts. Automaton has 17271 states and 23690 transitions. Word has length 399 [2021-12-18 06:49:32,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:49:32,373 INFO L470 AbstractCegarLoop]: Abstraction has 17271 states and 23690 transitions. [2021-12-18 06:49:32,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 8.666666666666666) internal successors, (182), 18 states have internal predecessors, (182), 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) [2021-12-18 06:49:32,373 INFO L276 IsEmpty]: Start isEmpty. Operand 17271 states and 23690 transitions. [2021-12-18 06:49:32,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-12-18 06:49:32,382 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:49:32,383 INFO L514 BasicCegarLoop]: trace histogram [36, 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] [2021-12-18 06:49:32,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-18 06:49:32,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:49:32,600 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:49:32,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:49:32,600 INFO L85 PathProgramCache]: Analyzing trace with hash 382847145, now seen corresponding path program 3 times [2021-12-18 06:49:32,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:49:32,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198984813] [2021-12-18 06:49:32,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:49:32,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:49:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:32,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:49:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:49:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:49:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:49:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:49:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:49:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:49:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:49:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:49:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:49:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:49:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:49:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:49:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:49:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:49:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:49:33,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:49:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:49:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:49:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:49:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 06:49:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 06:49:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 06:49:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 06:49:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 06:49:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:49:33,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:49:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 06:49:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 06:49:33,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 06:49:33,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:49:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 06:49:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:49:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-12-18 06:49:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:49:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-12-18 06:49:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2021-12-18 06:49:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-18 06:49:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:49:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 95 proven. 165 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2021-12-18 06:49:33,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:49:33,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198984813] [2021-12-18 06:49:33,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198984813] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:49:33,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216732203] [2021-12-18 06:49:33,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 06:49:33,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:49:33,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:49:33,599 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 06:49:33,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 06:50:10,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-18 06:50:10,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 06:50:10,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 3620 conjuncts, 79 conjunts are in the unsatisfiable core [2021-12-18 06:50:10,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:50:44,223 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_mousedev_connect_~mousedev~9#1.offset| Int)) (and (let ((.cse0 (mod (mod (+ (* |ULTIMATE.start_mousedev_connect_~mousedev~9#1.offset| 18446744073709551615) 2012) 18446744073709551616) 4294967296))) (or (= (+ |c_ULTIMATE.start_mousedev_connect_#res#1| 4294967296) .cse0) (<= .cse0 2147483647))) (<= |ULTIMATE.start_mousedev_connect_~mousedev~9#1.offset| 2147485660) (< 2012 |ULTIMATE.start_mousedev_connect_~mousedev~9#1.offset|))) is different from false [2021-12-18 06:51:09,303 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_mousedev_connect_~mousedev~9#1.offset| Int)) (and (let ((.cse0 (mod (mod (+ (* |ULTIMATE.start_mousedev_connect_~mousedev~9#1.offset| 18446744073709551615) 2012) 18446744073709551616) 4294967296))) (or (= (+ c_~ldv_retval_0~0 4294967296) .cse0) (<= .cse0 2147483647))) (<= |ULTIMATE.start_mousedev_connect_~mousedev~9#1.offset| 2147485660) (< 2012 |ULTIMATE.start_mousedev_connect_~mousedev~9#1.offset|))) is different from false [2021-12-18 06:51:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1804 trivial. 0 not checked. [2021-12-18 06:51:13,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 06:51:13,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216732203] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:51:13,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 06:51:13,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [15] total 32 [2021-12-18 06:51:13,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445212323] [2021-12-18 06:51:13,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:51:13,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-18 06:51:13,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:51:13,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-18 06:51:13,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=807, Unknown=3, NotChecked=114, Total=992 [2021-12-18 06:51:13,525 INFO L87 Difference]: Start difference. First operand 17271 states and 23690 transitions. Second operand has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 16 states have internal predecessors, (124), 3 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (32), 6 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 06:51:16,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:51:16,916 INFO L93 Difference]: Finished difference Result 34673 states and 47519 transitions. [2021-12-18 06:51:16,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-18 06:51:16,917 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 16 states have internal predecessors, (124), 3 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (32), 6 states have call predecessors, (32), 3 states have call successors, (32) Word has length 408 [2021-12-18 06:51:16,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:51:16,962 INFO L225 Difference]: With dead ends: 34673 [2021-12-18 06:51:16,962 INFO L226 Difference]: Without dead ends: 17471 [2021-12-18 06:51:16,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=174, Invalid=1552, Unknown=4, NotChecked=162, Total=1892 [2021-12-18 06:51:16,991 INFO L933 BasicCegarLoop]: 1319 mSDtfsCounter, 103 mSDsluCounter, 20964 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 22283 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 166 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 06:51:16,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 22283 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 249 Invalid, 0 Unknown, 166 Unchecked, 0.2s Time] [2021-12-18 06:51:17,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17471 states. [2021-12-18 06:51:17,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17471 to 17303. [2021-12-18 06:51:17,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17303 states, 13338 states have (on average 1.3654970760233918) internal successors, (18213), 13678 states have internal predecessors, (18213), 2732 states have call successors, (2732), 1215 states have call predecessors, (2732), 1232 states have return successors, (2785), 2651 states have call predecessors, (2785), 2703 states have call successors, (2785) [2021-12-18 06:51:17,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17303 states to 17303 states and 23730 transitions. [2021-12-18 06:51:17,564 INFO L78 Accepts]: Start accepts. Automaton has 17303 states and 23730 transitions. Word has length 408 [2021-12-18 06:51:17,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:51:17,564 INFO L470 AbstractCegarLoop]: Abstraction has 17303 states and 23730 transitions. [2021-12-18 06:51:17,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.526315789473684) internal successors, (124), 16 states have internal predecessors, (124), 3 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (32), 6 states have call predecessors, (32), 3 states have call successors, (32) [2021-12-18 06:51:17,564 INFO L276 IsEmpty]: Start isEmpty. Operand 17303 states and 23730 transitions. [2021-12-18 06:51:17,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-12-18 06:51:17,573 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:51:17,573 INFO L514 BasicCegarLoop]: trace histogram [36, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1] [2021-12-18 06:51:17,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-18 06:51:17,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:51:17,774 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:51:17,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:51:17,775 INFO L85 PathProgramCache]: Analyzing trace with hash 92843028, now seen corresponding path program 1 times [2021-12-18 06:51:17,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:51:17,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656190491] [2021-12-18 06:51:17,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:51:17,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:51:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:51:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:51:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:51:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:51:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:51:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:51:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:51:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:51:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:51:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:51:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:51:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:51:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 06:51:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 06:51:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 06:51:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 06:51:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 06:51:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:51:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:51:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 06:51:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 06:51:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 06:51:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-18 06:51:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-18 06:51:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 06:51:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 06:51:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2021-12-18 06:51:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2021-12-18 06:51:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 411 [2021-12-18 06:51:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2053 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2021-12-18 06:51:18,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:51:18,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656190491] [2021-12-18 06:51:18,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656190491] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:51:18,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:51:18,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 06:51:18,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050626856] [2021-12-18 06:51:18,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:51:18,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 06:51:18,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:51:18,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 06:51:18,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-18 06:51:18,543 INFO L87 Difference]: Start difference. First operand 17303 states and 23730 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (39), 9 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-18 06:51:20,561 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 [] [2021-12-18 06:51:22,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:51:24,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:51:26,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:51:28,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:51:30,601 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 [] [2021-12-18 06:51:38,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:51:38,662 INFO L93 Difference]: Finished difference Result 44353 states and 60729 transitions. [2021-12-18 06:51:38,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 06:51:38,663 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (39), 9 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 424 [2021-12-18 06:51:38,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:51:38,758 INFO L225 Difference]: With dead ends: 44353 [2021-12-18 06:51:38,758 INFO L226 Difference]: Without dead ends: 27119 [2021-12-18 06:51:38,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2021-12-18 06:51:38,800 INFO L933 BasicCegarLoop]: 1822 mSDtfsCounter, 2714 mSDsluCounter, 2762 mSDsCounter, 0 mSdLazyCounter, 4224 mSolverCounterSat, 1377 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 4584 SdHoareTripleChecker+Invalid, 5607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1377 IncrementalHoareTripleChecker+Valid, 4224 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-12-18 06:51:38,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2823 Valid, 4584 Invalid, 5607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1377 Valid, 4224 Invalid, 6 Unknown, 0 Unchecked, 19.0s Time] [2021-12-18 06:51:38,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27119 states. [2021-12-18 06:51:39,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27119 to 25267. [2021-12-18 06:51:39,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25267 states, 19643 states have (on average 1.3660846102937434) internal successors, (26834), 20110 states have internal predecessors, (26834), 3789 states have call successors, (3789), 1823 states have call predecessors, (3789), 1834 states have return successors, (3870), 3667 states have call predecessors, (3870), 3760 states have call successors, (3870) [2021-12-18 06:51:39,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25267 states to 25267 states and 34493 transitions. [2021-12-18 06:51:39,770 INFO L78 Accepts]: Start accepts. Automaton has 25267 states and 34493 transitions. Word has length 424 [2021-12-18 06:51:39,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:51:39,770 INFO L470 AbstractCegarLoop]: Abstraction has 25267 states and 34493 transitions. [2021-12-18 06:51:39,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (39), 9 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-18 06:51:39,770 INFO L276 IsEmpty]: Start isEmpty. Operand 25267 states and 34493 transitions. [2021-12-18 06:51:39,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-12-18 06:51:39,784 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:51:39,785 INFO L514 BasicCegarLoop]: trace histogram [36, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:51:39,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-18 06:51:39,785 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:51:39,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:51:39,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1018338642, now seen corresponding path program 1 times [2021-12-18 06:51:39,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:51:39,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007845081] [2021-12-18 06:51:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:51:39,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:51:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:51:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:51:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:51:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:51:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:51:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:51:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:51:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:51:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:51:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:51:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:51:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:51:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 06:51:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 06:51:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 06:51:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 06:51:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 06:51:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:51:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:51:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 06:51:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 06:51:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 06:51:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-18 06:51:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-18 06:51:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:40,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-12-18 06:51:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-18 06:51:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-12-18 06:51:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-12-18 06:51:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-12-18 06:51:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2021-12-18 06:51:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:51:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:40,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2051 trivial. 0 not checked. [2021-12-18 06:51:40,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:51:40,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007845081] [2021-12-18 06:51:40,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007845081] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:51:40,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:51:40,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-18 06:51:40,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022738318] [2021-12-18 06:51:40,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:51:40,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-18 06:51:40,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:51:40,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-18 06:51:40,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-12-18 06:51:40,666 INFO L87 Difference]: Start difference. First operand 25267 states and 34493 transitions. Second operand has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (40), 9 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2021-12-18 06:51:42,683 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 [] [2021-12-18 06:51:44,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:51:46,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:51:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:51:52,043 INFO L93 Difference]: Finished difference Result 27042 states and 36847 transitions. [2021-12-18 06:51:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 06:51:52,043 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (40), 9 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) Word has length 447 [2021-12-18 06:51:52,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:51:52,124 INFO L225 Difference]: With dead ends: 27042 [2021-12-18 06:51:52,124 INFO L226 Difference]: Without dead ends: 27031 [2021-12-18 06:51:52,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2021-12-18 06:51:52,141 INFO L933 BasicCegarLoop]: 1175 mSDtfsCounter, 969 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 4674 mSolverCounterSat, 401 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 5048 SdHoareTripleChecker+Invalid, 5078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 4674 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-12-18 06:51:52,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1039 Valid, 5048 Invalid, 5078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 4674 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2021-12-18 06:51:52,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27031 states. [2021-12-18 06:51:52,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27031 to 25261. [2021-12-18 06:51:52,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25261 states, 19638 states have (on average 1.365413993278338) internal successors, (26814), 20104 states have internal predecessors, (26814), 3788 states have call successors, (3788), 1823 states have call predecessors, (3788), 1834 states have return successors, (3870), 3667 states have call predecessors, (3870), 3760 states have call successors, (3870) [2021-12-18 06:51:53,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25261 states to 25261 states and 34472 transitions. [2021-12-18 06:51:53,167 INFO L78 Accepts]: Start accepts. Automaton has 25261 states and 34472 transitions. Word has length 447 [2021-12-18 06:51:53,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:51:53,167 INFO L470 AbstractCegarLoop]: Abstraction has 25261 states and 34472 transitions. [2021-12-18 06:51:53,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (40), 9 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2021-12-18 06:51:53,168 INFO L276 IsEmpty]: Start isEmpty. Operand 25261 states and 34472 transitions. [2021-12-18 06:51:53,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2021-12-18 06:51:53,178 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:51:53,178 INFO L514 BasicCegarLoop]: trace histogram [36, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:51:53,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-18 06:51:53,178 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:51:53,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:51:53,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1695674946, now seen corresponding path program 1 times [2021-12-18 06:51:53,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:51:53,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531421072] [2021-12-18 06:51:53,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:51:53,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:51:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:51:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:51:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:51:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:51:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:51:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:51:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:51:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:51:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:51:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:51:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:51:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:51:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 06:51:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 06:51:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 06:51:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 06:51:53,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 06:51:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:51:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:51:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 06:51:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 06:51:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 06:51:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-18 06:51:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:51:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-18 06:51:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:51:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-12-18 06:51:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-18 06:51:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-12-18 06:51:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-12-18 06:51:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-12-18 06:51:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-12-18 06:51:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:51:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:51:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2051 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2051 trivial. 0 not checked. [2021-12-18 06:51:53,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:51:53,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531421072] [2021-12-18 06:51:53,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531421072] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:51:53,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:51:53,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-18 06:51:53,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964715927] [2021-12-18 06:51:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:51:53,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-18 06:51:53,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:51:53,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-18 06:51:53,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-12-18 06:51:53,924 INFO L87 Difference]: Start difference. First operand 25261 states and 34472 transitions. Second operand has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 9 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2021-12-18 06:51:55,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:51:57,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:51:59,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:52:01,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:52:09,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:52:09,722 INFO L93 Difference]: Finished difference Result 56483 states and 77877 transitions. [2021-12-18 06:52:09,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 06:52:09,723 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 9 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) Word has length 445 [2021-12-18 06:52:09,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:52:09,813 INFO L225 Difference]: With dead ends: 56483 [2021-12-18 06:52:09,813 INFO L226 Difference]: Without dead ends: 31291 [2021-12-18 06:52:09,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-12-18 06:52:09,866 INFO L933 BasicCegarLoop]: 1536 mSDtfsCounter, 1416 mSDsluCounter, 6695 mSDsCounter, 0 mSdLazyCounter, 6050 mSolverCounterSat, 497 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 8231 SdHoareTripleChecker+Invalid, 6551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 6050 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-12-18 06:52:09,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1486 Valid, 8231 Invalid, 6551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 6050 Invalid, 4 Unknown, 0 Unchecked, 14.4s Time] [2021-12-18 06:52:09,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31291 states. [2021-12-18 06:52:10,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31291 to 25179. [2021-12-18 06:52:10,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25179 states, 19565 states have (on average 1.3643240480449783) internal successors, (26693), 20038 states have internal predecessors, (26693), 3779 states have call successors, (3779), 1823 states have call predecessors, (3779), 1834 states have return successors, (3854), 3651 states have call predecessors, (3854), 3752 states have call successors, (3854) [2021-12-18 06:52:10,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25179 states to 25179 states and 34326 transitions. [2021-12-18 06:52:10,972 INFO L78 Accepts]: Start accepts. Automaton has 25179 states and 34326 transitions. Word has length 445 [2021-12-18 06:52:10,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:52:10,972 INFO L470 AbstractCegarLoop]: Abstraction has 25179 states and 34326 transitions. [2021-12-18 06:52:10,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 9 states have call predecessors, (39), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2021-12-18 06:52:10,973 INFO L276 IsEmpty]: Start isEmpty. Operand 25179 states and 34326 transitions. [2021-12-18 06:52:10,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2021-12-18 06:52:10,986 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:52:10,986 INFO L514 BasicCegarLoop]: trace histogram [36, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:52:10,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-18 06:52:10,986 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:52:10,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:52:10,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1032632512, now seen corresponding path program 1 times [2021-12-18 06:52:10,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:52:10,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262094582] [2021-12-18 06:52:10,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:52:10,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:52:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:52:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:52:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:52:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:52:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:52:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:52:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:52:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:52:11,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:52:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:52:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:52:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 06:52:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 06:52:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 06:52:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 06:52:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 06:52:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:52:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 06:52:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 06:52:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 06:52:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-18 06:52:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-18 06:52:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-12-18 06:52:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-18 06:52:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-12-18 06:52:11,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2021-12-18 06:52:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-12-18 06:52:11,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-12-18 06:52:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2021-12-18 06:52:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:11,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2056 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2054 trivial. 0 not checked. [2021-12-18 06:52:11,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:52:11,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262094582] [2021-12-18 06:52:11,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262094582] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:52:11,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:52:11,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-12-18 06:52:11,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539442633] [2021-12-18 06:52:11,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:52:11,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-18 06:52:11,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:52:11,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-18 06:52:11,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-12-18 06:52:11,775 INFO L87 Difference]: Start difference. First operand 25179 states and 34326 transitions. Second operand has 16 states, 16 states have (on average 8.875) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (41), 9 states have call predecessors, (41), 3 states have return successors, (38), 4 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 06:52:13,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:52:15,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:52:17,814 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 [] [2021-12-18 06:52:25,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:52:25,241 INFO L93 Difference]: Finished difference Result 56043 states and 77163 transitions. [2021-12-18 06:52:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 06:52:25,241 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.875) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (41), 9 states have call predecessors, (41), 3 states have return successors, (38), 4 states have call predecessors, (38), 2 states have call successors, (38) Word has length 454 [2021-12-18 06:52:25,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:52:25,336 INFO L225 Difference]: With dead ends: 56043 [2021-12-18 06:52:25,336 INFO L226 Difference]: Without dead ends: 30933 [2021-12-18 06:52:25,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2021-12-18 06:52:25,390 INFO L933 BasicCegarLoop]: 1382 mSDtfsCounter, 3003 mSDsluCounter, 7202 mSDsCounter, 0 mSdLazyCounter, 6297 mSolverCounterSat, 1888 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3131 SdHoareTripleChecker+Valid, 8584 SdHoareTripleChecker+Invalid, 8188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1888 IncrementalHoareTripleChecker+Valid, 6297 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-12-18 06:52:25,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3131 Valid, 8584 Invalid, 8188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1888 Valid, 6297 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2021-12-18 06:52:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30933 states. [2021-12-18 06:52:26,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30933 to 25323. [2021-12-18 06:52:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25323 states, 19677 states have (on average 1.3622503430400976) internal successors, (26805), 20150 states have internal predecessors, (26805), 3779 states have call successors, (3779), 1823 states have call predecessors, (3779), 1866 states have return successors, (3911), 3683 states have call predecessors, (3911), 3752 states have call successors, (3911) [2021-12-18 06:52:26,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25323 states to 25323 states and 34495 transitions. [2021-12-18 06:52:26,454 INFO L78 Accepts]: Start accepts. Automaton has 25323 states and 34495 transitions. Word has length 454 [2021-12-18 06:52:26,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:52:26,454 INFO L470 AbstractCegarLoop]: Abstraction has 25323 states and 34495 transitions. [2021-12-18 06:52:26,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.875) internal successors, (142), 7 states have internal predecessors, (142), 2 states have call successors, (41), 9 states have call predecessors, (41), 3 states have return successors, (38), 4 states have call predecessors, (38), 2 states have call successors, (38) [2021-12-18 06:52:26,455 INFO L276 IsEmpty]: Start isEmpty. Operand 25323 states and 34495 transitions. [2021-12-18 06:52:26,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-12-18 06:52:26,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:52:26,468 INFO L514 BasicCegarLoop]: trace histogram [36, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:52:26,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-18 06:52:26,468 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:52:26,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:52:26,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1065791856, now seen corresponding path program 1 times [2021-12-18 06:52:26,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:52:26,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291482735] [2021-12-18 06:52:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:52:26,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:52:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:26,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:26,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:26,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:52:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:26,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:52:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:26,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:52:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:52:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:52:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:52:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:52:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:52:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:52:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:52:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:52:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 06:52:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 06:52:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 06:52:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 06:52:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 06:52:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:52:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 06:52:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 06:52:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 06:52:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-18 06:52:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-18 06:52:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2021-12-18 06:52:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 06:52:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-18 06:52:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2021-12-18 06:52:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-18 06:52:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2021-12-18 06:52:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:27,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2063 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2051 trivial. 0 not checked. [2021-12-18 06:52:27,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:52:27,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291482735] [2021-12-18 06:52:27,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291482735] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:52:27,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:52:27,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-18 06:52:27,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87950092] [2021-12-18 06:52:27,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:52:27,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-18 06:52:27,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:52:27,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-18 06:52:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-12-18 06:52:27,341 INFO L87 Difference]: Start difference. First operand 25323 states and 34495 transitions. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (41), 10 states have call predecessors, (41), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-18 06:52:29,359 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 [] [2021-12-18 06:52:31,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:52:33,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:52:35,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:52:37,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:52:45,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:52:45,006 INFO L93 Difference]: Finished difference Result 65956 states and 89425 transitions. [2021-12-18 06:52:45,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-18 06:52:45,007 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (41), 10 states have call predecessors, (41), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 455 [2021-12-18 06:52:45,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:52:45,122 INFO L225 Difference]: With dead ends: 65956 [2021-12-18 06:52:45,122 INFO L226 Difference]: Without dead ends: 40702 [2021-12-18 06:52:45,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2021-12-18 06:52:45,167 INFO L933 BasicCegarLoop]: 2049 mSDtfsCounter, 2909 mSDsluCounter, 3600 mSDsCounter, 0 mSdLazyCounter, 4690 mSolverCounterSat, 1784 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 5649 SdHoareTripleChecker+Invalid, 6479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1784 IncrementalHoareTripleChecker+Valid, 4690 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-12-18 06:52:45,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2996 Valid, 5649 Invalid, 6479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1784 Valid, 4690 Invalid, 5 Unknown, 0 Unchecked, 15.7s Time] [2021-12-18 06:52:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40702 states. [2021-12-18 06:52:46,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40702 to 37845. [2021-12-18 06:52:46,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37845 states, 29365 states have (on average 1.3568193427549804) internal successors, (39843), 30092 states have internal predecessors, (39843), 5640 states have call successors, (5640), 2749 states have call predecessors, (5640), 2839 states have return successors, (5883), 5501 states have call predecessors, (5883), 5612 states have call successors, (5883) [2021-12-18 06:52:46,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37845 states to 37845 states and 51366 transitions. [2021-12-18 06:52:46,792 INFO L78 Accepts]: Start accepts. Automaton has 37845 states and 51366 transitions. Word has length 455 [2021-12-18 06:52:46,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:52:46,793 INFO L470 AbstractCegarLoop]: Abstraction has 37845 states and 51366 transitions. [2021-12-18 06:52:46,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (41), 10 states have call predecessors, (41), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-18 06:52:46,793 INFO L276 IsEmpty]: Start isEmpty. Operand 37845 states and 51366 transitions. [2021-12-18 06:52:46,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-12-18 06:52:46,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:52:46,813 INFO L514 BasicCegarLoop]: trace histogram [36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:52:46,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-18 06:52:46,813 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:52:46,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:52:46,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1129579447, now seen corresponding path program 1 times [2021-12-18 06:52:46,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:52:46,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719708426] [2021-12-18 06:52:46,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:52:46,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:52:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:47,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:52:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:52:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:52:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:52:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:52:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:52:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:52:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:52:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:52:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:52:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:52:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 06:52:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 06:52:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 06:52:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 06:52:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 06:52:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:52:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 06:52:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 06:52:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 06:52:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 06:52:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 06:52:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 06:52:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 06:52:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 06:52:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 06:52:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 06:52:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-18 06:52:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-12-18 06:52:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2021-12-18 06:52:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 433 [2021-12-18 06:52:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2021-12-18 06:52:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:47,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1819 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2021-12-18 06:52:47,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:52:47,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719708426] [2021-12-18 06:52:47,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719708426] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:52:47,531 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:52:47,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 06:52:47,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679975615] [2021-12-18 06:52:47,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:52:47,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 06:52:47,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:52:47,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 06:52:47,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-18 06:52:47,533 INFO L87 Difference]: Start difference. First operand 37845 states and 51366 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (44), 8 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-18 06:52:49,546 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:52:51,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:52:56,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:52:56,526 INFO L93 Difference]: Finished difference Result 79281 states and 107782 transitions. [2021-12-18 06:52:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 06:52:56,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (44), 8 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 460 [2021-12-18 06:52:56,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:52:56,650 INFO L225 Difference]: With dead ends: 79281 [2021-12-18 06:52:56,650 INFO L226 Difference]: Without dead ends: 41505 [2021-12-18 06:52:56,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-12-18 06:52:56,727 INFO L933 BasicCegarLoop]: 1184 mSDtfsCounter, 1575 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 846 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 3204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-12-18 06:52:56,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1647 Valid, 3169 Invalid, 3204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 2356 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-12-18 06:52:56,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41505 states. [2021-12-18 06:52:58,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41505 to 38559. [2021-12-18 06:52:58,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38559 states, 29977 states have (on average 1.354938786402909) internal successors, (40617), 30740 states have internal predecessors, (40617), 5742 states have call successors, (5742), 2749 states have call predecessors, (5742), 2839 states have return successors, (5985), 5567 states have call predecessors, (5985), 5714 states have call successors, (5985) [2021-12-18 06:52:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38559 states to 38559 states and 52344 transitions. [2021-12-18 06:52:58,589 INFO L78 Accepts]: Start accepts. Automaton has 38559 states and 52344 transitions. Word has length 460 [2021-12-18 06:52:58,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:52:58,590 INFO L470 AbstractCegarLoop]: Abstraction has 38559 states and 52344 transitions. [2021-12-18 06:52:58,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (44), 8 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-18 06:52:58,591 INFO L276 IsEmpty]: Start isEmpty. Operand 38559 states and 52344 transitions. [2021-12-18 06:52:58,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2021-12-18 06:52:58,612 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:52:58,612 INFO L514 BasicCegarLoop]: trace histogram [36, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:52:58,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-18 06:52:58,613 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:52:58,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:52:58,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1138852017, now seen corresponding path program 1 times [2021-12-18 06:52:58,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:52:58,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033741899] [2021-12-18 06:52:58,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:52:58,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:52:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:59,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:52:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:52:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:52:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:52:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:52:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:59,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:52:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:52:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:59,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:52:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:52:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:52:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:52:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 06:52:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 06:52:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 06:52:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 06:52:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 06:52:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:52:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 06:52:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-18 06:52:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-18 06:52:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:52:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-18 06:52:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 06:52:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 06:52:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-18 06:52:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-18 06:52:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-18 06:52:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-18 06:52:59,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 06:52:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-12-18 06:52:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:52:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-12-18 06:52:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-12-18 06:52:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:52:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2021-12-18 06:52:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:52:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1819 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2021-12-18 06:52:59,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:52:59,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033741899] [2021-12-18 06:52:59,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033741899] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:52:59,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:52:59,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-12-18 06:52:59,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566826787] [2021-12-18 06:52:59,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:52:59,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-18 06:52:59,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:52:59,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-18 06:52:59,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-12-18 06:52:59,788 INFO L87 Difference]: Start difference. First operand 38559 states and 52344 transitions. Second operand has 15 states, 15 states have (on average 10.266666666666667) internal successors, (154), 7 states have internal predecessors, (154), 2 states have call successors, (44), 8 states have call predecessors, (44), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-18 06:53:01,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:53:03,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:53:05,823 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 [] [2021-12-18 06:53:14,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:53:14,374 INFO L93 Difference]: Finished difference Result 79851 states and 108430 transitions. [2021-12-18 06:53:14,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 06:53:14,375 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.266666666666667) internal successors, (154), 7 states have internal predecessors, (154), 2 states have call successors, (44), 8 states have call predecessors, (44), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) Word has length 462 [2021-12-18 06:53:14,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:53:14,532 INFO L225 Difference]: With dead ends: 79851 [2021-12-18 06:53:14,532 INFO L226 Difference]: Without dead ends: 41337 [2021-12-18 06:53:14,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2021-12-18 06:53:14,601 INFO L933 BasicCegarLoop]: 1172 mSDtfsCounter, 952 mSDsluCounter, 6055 mSDsCounter, 0 mSdLazyCounter, 7336 mSolverCounterSat, 387 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 7227 SdHoareTripleChecker+Invalid, 7726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 7336 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-12-18 06:53:14,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 7227 Invalid, 7726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 7336 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2021-12-18 06:53:14,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41337 states. [2021-12-18 06:53:16,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41337 to 38842. [2021-12-18 06:53:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38842 states, 30210 states have (on average 1.3522012578616351) internal successors, (40850), 30944 states have internal predecessors, (40850), 5742 states have call successors, (5742), 2749 states have call predecessors, (5742), 2889 states have return successors, (6059), 5646 states have call predecessors, (6059), 5714 states have call successors, (6059) [2021-12-18 06:53:16,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38842 states to 38842 states and 52651 transitions. [2021-12-18 06:53:16,376 INFO L78 Accepts]: Start accepts. Automaton has 38842 states and 52651 transitions. Word has length 462 [2021-12-18 06:53:16,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:53:16,377 INFO L470 AbstractCegarLoop]: Abstraction has 38842 states and 52651 transitions. [2021-12-18 06:53:16,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.266666666666667) internal successors, (154), 7 states have internal predecessors, (154), 2 states have call successors, (44), 8 states have call predecessors, (44), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) [2021-12-18 06:53:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 38842 states and 52651 transitions. [2021-12-18 06:53:16,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-12-18 06:53:16,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:53:16,398 INFO L514 BasicCegarLoop]: trace histogram [36, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:53:16,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-18 06:53:16,399 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:53:16,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:53:16,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1701105574, now seen corresponding path program 1 times [2021-12-18 06:53:16,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:53:16,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656302424] [2021-12-18 06:53:16,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:53:16,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:53:17,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:53:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:53:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:53:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:53:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:53:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:53:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:53:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:53:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:53:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:53:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:53:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:53:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-18 06:53:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 06:53:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 06:53:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 06:53:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-18 06:53:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-18 06:53:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:53:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-18 06:53:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-18 06:53:17,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 06:53:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-18 06:53:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:53:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2021-12-18 06:53:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:53:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 06:53:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:53:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 06:53:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-18 06:53:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2021-12-18 06:53:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2021-12-18 06:53:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 432 [2021-12-18 06:53:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2021-12-18 06:53:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 444 [2021-12-18 06:53:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:53:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 464 [2021-12-18 06:53:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2156 backedges. 95 proven. 165 refuted. 0 times theorem prover too weak. 1896 trivial. 0 not checked. [2021-12-18 06:53:17,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:53:17,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656302424] [2021-12-18 06:53:17,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656302424] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:53:17,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345331093] [2021-12-18 06:53:17,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:53:17,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:53:17,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:53:17,985 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 06:53:17,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-18 06:53:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:53:39,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 5510 conjuncts, 32 conjunts are in the unsatisfiable core [2021-12-18 06:53:39,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:53:41,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2156 backedges. 1137 proven. 63 refuted. 0 times theorem prover too weak. 956 trivial. 0 not checked. [2021-12-18 06:53:41,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 06:53:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2156 backedges. 95 proven. 165 refuted. 0 times theorem prover too weak. 1896 trivial. 0 not checked. [2021-12-18 06:53:44,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345331093] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 06:53:44,030 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 06:53:44,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 10] total 27 [2021-12-18 06:53:44,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666090993] [2021-12-18 06:53:44,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 06:53:44,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-18 06:53:44,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:53:44,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-18 06:53:44,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=622, Unknown=0, NotChecked=0, Total=702 [2021-12-18 06:53:44,033 INFO L87 Difference]: Start difference. First operand 38842 states and 52651 transitions. Second operand has 27 states, 25 states have (on average 9.72) internal successors, (243), 20 states have internal predecessors, (243), 4 states have call successors, (103), 9 states have call predecessors, (103), 6 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2021-12-18 06:53:46,055 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 [] [2021-12-18 06:54:14,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 06:54:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:54:27,076 INFO L93 Difference]: Finished difference Result 79995 states and 108761 transitions. [2021-12-18 06:54:27,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-18 06:54:27,077 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 9.72) internal successors, (243), 20 states have internal predecessors, (243), 4 states have call successors, (103), 9 states have call predecessors, (103), 6 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) Word has length 474 [2021-12-18 06:54:27,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:54:27,211 INFO L225 Difference]: With dead ends: 79995 [2021-12-18 06:54:27,211 INFO L226 Difference]: Without dead ends: 41076 [2021-12-18 06:54:27,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1126 GetRequests, 1065 SyntacticMatches, 8 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=432, Invalid=2538, Unknown=0, NotChecked=0, Total=2970 [2021-12-18 06:54:27,288 INFO L933 BasicCegarLoop]: 1163 mSDtfsCounter, 1247 mSDsluCounter, 9430 mSDsCounter, 0 mSdLazyCounter, 11736 mSolverCounterSat, 660 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1317 SdHoareTripleChecker+Valid, 10593 SdHoareTripleChecker+Invalid, 12397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 11736 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2021-12-18 06:54:27,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1317 Valid, 10593 Invalid, 12397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [660 Valid, 11736 Invalid, 1 Unknown, 0 Unchecked, 37.9s Time] [2021-12-18 06:54:27,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41076 states. [2021-12-18 06:54:28,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41076 to 38905. [2021-12-18 06:54:28,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38905 states, 30272 states have (on average 1.3515129492600422) internal successors, (40913), 31006 states have internal predecessors, (40913), 5742 states have call successors, (5742), 2750 states have call predecessors, (5742), 2890 states have return successors, (6059), 5646 states have call predecessors, (6059), 5714 states have call successors, (6059) [2021-12-18 06:54:29,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38905 states to 38905 states and 52714 transitions. [2021-12-18 06:54:29,035 INFO L78 Accepts]: Start accepts. Automaton has 38905 states and 52714 transitions. Word has length 474 [2021-12-18 06:54:29,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:54:29,036 INFO L470 AbstractCegarLoop]: Abstraction has 38905 states and 52714 transitions. [2021-12-18 06:54:29,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 9.72) internal successors, (243), 20 states have internal predecessors, (243), 4 states have call successors, (103), 9 states have call predecessors, (103), 6 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2021-12-18 06:54:29,036 INFO L276 IsEmpty]: Start isEmpty. Operand 38905 states and 52714 transitions. [2021-12-18 06:54:29,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2021-12-18 06:54:29,052 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:54:29,053 INFO L514 BasicCegarLoop]: trace histogram [39, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:54:29,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-18 06:54:29,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-18 06:54:29,254 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:54:29,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:54:29,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1955828879, now seen corresponding path program 2 times [2021-12-18 06:54:29,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:54:29,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969060378] [2021-12-18 06:54:29,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:54:29,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:54:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:54:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:54:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:54:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:54:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:54:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:54:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:54:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:54:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:54:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:54:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:54:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:54:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 06:54:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-18 06:54:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 06:54:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 06:54:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-18 06:54:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-18 06:54:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:54:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-18 06:54:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-12-18 06:54:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 06:54:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-18 06:54:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:54:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-18 06:54:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:54:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 06:54:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:54:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 06:54:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2021-12-18 06:54:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2021-12-18 06:54:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2021-12-18 06:54:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-12-18 06:54:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2021-12-18 06:54:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-18 06:54:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:54:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 467 [2021-12-18 06:54:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:54:30,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2294 backedges. 110 proven. 207 refuted. 0 times theorem prover too weak. 1977 trivial. 0 not checked. [2021-12-18 06:54:30,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:54:30,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969060378] [2021-12-18 06:54:30,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969060378] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:54:30,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865309341] [2021-12-18 06:54:30,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 06:54:30,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:54:30,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:54:30,662 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 06:54:30,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-18 06:55:27,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 06:55:27,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 06:55:27,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 5555 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-18 06:55:27,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:55:28,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2294 backedges. 1234 proven. 17 refuted. 0 times theorem prover too weak. 1043 trivial. 0 not checked. [2021-12-18 06:55:28,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 06:55:31,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2294 backedges. 110 proven. 207 refuted. 0 times theorem prover too weak. 1977 trivial. 0 not checked. [2021-12-18 06:55:31,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865309341] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 06:55:31,421 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 06:55:31,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 29 [2021-12-18 06:55:31,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089480038] [2021-12-18 06:55:31,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 06:55:31,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-12-18 06:55:31,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:55:31,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-18 06:55:31,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2021-12-18 06:55:31,423 INFO L87 Difference]: Start difference. First operand 38905 states and 52714 transitions. Second operand has 29 states, 27 states have (on average 9.037037037037036) internal successors, (244), 22 states have internal predecessors, (244), 4 states have call successors, (103), 9 states have call predecessors, (103), 6 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2021-12-18 06:55:33,444 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 [] [2021-12-18 06:55:35,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:55:37,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:55:39,465 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 [] [2021-12-18 06:56:15,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:56:15,854 INFO L93 Difference]: Finished difference Result 80109 states and 108864 transitions. [2021-12-18 06:56:15,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-12-18 06:56:15,855 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 9.037037037037036) internal successors, (244), 22 states have internal predecessors, (244), 4 states have call successors, (103), 9 states have call predecessors, (103), 6 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) Word has length 477 [2021-12-18 06:56:15,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:56:15,974 INFO L225 Difference]: With dead ends: 80109 [2021-12-18 06:56:15,974 INFO L226 Difference]: Without dead ends: 41131 [2021-12-18 06:56:16,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1132 GetRequests, 1072 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=377, Invalid=2703, Unknown=0, NotChecked=0, Total=3080 [2021-12-18 06:56:16,054 INFO L933 BasicCegarLoop]: 1165 mSDtfsCounter, 2177 mSDsluCounter, 9421 mSDsCounter, 0 mSdLazyCounter, 11458 mSolverCounterSat, 1350 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2247 SdHoareTripleChecker+Valid, 10586 SdHoareTripleChecker+Invalid, 12812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1350 IncrementalHoareTripleChecker+Valid, 11458 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2021-12-18 06:56:16,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2247 Valid, 10586 Invalid, 12812 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1350 Valid, 11458 Invalid, 4 Unknown, 0 Unchecked, 39.5s Time] [2021-12-18 06:56:16,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41131 states. [2021-12-18 06:56:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41131 to 38960. [2021-12-18 06:56:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38960 states, 30327 states have (on average 1.3508754575131072) internal successors, (40968), 31061 states have internal predecessors, (40968), 5742 states have call successors, (5742), 2750 states have call predecessors, (5742), 2890 states have return successors, (6059), 5646 states have call predecessors, (6059), 5714 states have call successors, (6059) [2021-12-18 06:56:17,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38960 states to 38960 states and 52769 transitions. [2021-12-18 06:56:17,922 INFO L78 Accepts]: Start accepts. Automaton has 38960 states and 52769 transitions. Word has length 477 [2021-12-18 06:56:17,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:56:17,923 INFO L470 AbstractCegarLoop]: Abstraction has 38960 states and 52769 transitions. [2021-12-18 06:56:17,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 9.037037037037036) internal successors, (244), 22 states have internal predecessors, (244), 4 states have call successors, (103), 9 states have call predecessors, (103), 6 states have return successors, (75), 4 states have call predecessors, (75), 4 states have call successors, (75) [2021-12-18 06:56:17,923 INFO L276 IsEmpty]: Start isEmpty. Operand 38960 states and 52769 transitions. [2021-12-18 06:56:17,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-12-18 06:56:17,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:56:17,937 INFO L514 BasicCegarLoop]: trace histogram [42, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:56:18,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-18 06:56:18,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:56:18,138 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:56:18,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:56:18,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1217837562, now seen corresponding path program 3 times [2021-12-18 06:56:18,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:56:18,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138168845] [2021-12-18 06:56:18,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:56:18,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:56:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:56:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:56:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:56:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:56:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:56:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:56:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:56:18,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:56:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 06:56:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-18 06:56:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:56:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 06:56:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:18,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 06:56:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 06:56:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-18 06:56:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-18 06:56:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-12-18 06:56:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-18 06:56:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:56:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-12-18 06:56:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-18 06:56:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-18 06:56:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-12-18 06:56:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:56:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-12-18 06:56:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:56:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 06:56:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:56:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 06:56:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2021-12-18 06:56:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-12-18 06:56:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2021-12-18 06:56:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2021-12-18 06:56:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-12-18 06:56:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 450 [2021-12-18 06:56:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:56:19,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2021-12-18 06:56:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:56:19,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2441 backedges. 125 proven. 254 refuted. 0 times theorem prover too weak. 2062 trivial. 0 not checked. [2021-12-18 06:56:19,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:56:19,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138168845] [2021-12-18 06:56:19,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138168845] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 06:56:19,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681198007] [2021-12-18 06:56:19,338 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-18 06:56:19,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 06:56:19,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:56:19,339 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 06:56:19,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-18 06:57:39,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-18 06:57:39,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 06:57:39,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 3978 conjuncts, 42 conjunts are in the unsatisfiable core [2021-12-18 06:57:39,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 06:57:40,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 Killed by 15