./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-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.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 230b725329634d718374ec3f6d82161758e5d9913588383fdc3e35a9fd1533f5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:08:15,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:08:15,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:08:15,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:08:15,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:08:15,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:08:15,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:08:15,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:08:15,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:08:15,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:08:15,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:08:15,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:08:15,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:08:15,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:08:15,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:08:15,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:08:15,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:08:15,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:08:15,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:08:15,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:08:15,143 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:08:15,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:08:15,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:08:15,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:08:15,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:08:15,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:08:15,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:08:15,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:08:15,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:08:15,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:08:15,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:08:15,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:08:15,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:08:15,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:08:15,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:08:15,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:08:15,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:08:15,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:08:15,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:08:15,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:08:15,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:08:15,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:08:15,161 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 02:08:15,183 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:08:15,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:08:15,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:08:15,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:08:15,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:08:15,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:08:15,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:08:15,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:08:15,185 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:08:15,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:08:15,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 02:08:15,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:08:15,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:08:15,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:08:15,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:08:15,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:08:15,187 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:08:15,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:08:15,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:08:15,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:08:15,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:08:15,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:08:15,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:08:15,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:08:15,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:08:15,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 02:08:15,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 02:08:15,189 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:08:15,189 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:08:15,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:08:15,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 230b725329634d718374ec3f6d82161758e5d9913588383fdc3e35a9fd1533f5 [2022-07-14 02:08:15,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:08:15,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:08:15,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:08:15,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:08:15,357 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:08:15,359 INFO L432 ainManager$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-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i [2022-07-14 02:08:15,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878349a92/8bc79b7140e1414c99bb17ac962fe600/FLAGa7f4f5d10 [2022-07-14 02:08:15,947 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:08:15,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i [2022-07-14 02:08:15,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878349a92/8bc79b7140e1414c99bb17ac962fe600/FLAGa7f4f5d10 [2022-07-14 02:08:16,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/878349a92/8bc79b7140e1414c99bb17ac962fe600 [2022-07-14 02:08:16,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:08:16,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:08:16,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:08:16,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:08:16,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:08:16,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:08:16" (1/1) ... [2022-07-14 02:08:16,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@521fe4a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:16, skipping insertion in model container [2022-07-14 02:08:16,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:08:16" (1/1) ... [2022-07-14 02:08:16,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:08:16,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:08:17,230 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-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i[164687,164700] [2022-07-14 02:08:17,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:08:17,267 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 02:08:17,440 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-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i[164687,164700] [2022-07-14 02:08:17,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:08:17,487 INFO L208 MainTranslator]: Completed translation [2022-07-14 02:08:17,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17 WrapperNode [2022-07-14 02:08:17,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 02:08:17,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 02:08:17,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 02:08:17,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 02:08:17,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (1/1) ... [2022-07-14 02:08:17,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (1/1) ... [2022-07-14 02:08:17,629 INFO L137 Inliner]: procedures = 147, calls = 851, calls flagged for inlining = 60, calls inlined = 58, statements flattened = 2024 [2022-07-14 02:08:17,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 02:08:17,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 02:08:17,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 02:08:17,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 02:08:17,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (1/1) ... [2022-07-14 02:08:17,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (1/1) ... [2022-07-14 02:08:17,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (1/1) ... [2022-07-14 02:08:17,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (1/1) ... [2022-07-14 02:08:17,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (1/1) ... [2022-07-14 02:08:17,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (1/1) ... [2022-07-14 02:08:17,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (1/1) ... [2022-07-14 02:08:17,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 02:08:17,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 02:08:17,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 02:08:17,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 02:08:17,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (1/1) ... [2022-07-14 02:08:17,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:08:17,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:17,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 02:08:17,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 02:08:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 02:08:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-07-14 02:08:17,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-07-14 02:08:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-14 02:08:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 02:08:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 02:08:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 02:08:17,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 02:08:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 02:08:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 02:08:17,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 02:08:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 02:08:17,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 02:08:17,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 02:08:17,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 02:08:17,825 INFO L130 BoogieDeclarations]: Found specification of procedure get_rdac_data [2022-07-14 02:08:17,825 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rdac_data [2022-07-14 02:08:17,825 INFO L130 BoogieDeclarations]: Found specification of procedure blk_put_request [2022-07-14 02:08:17,825 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_put_request [2022-07-14 02:08:17,825 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-14 02:08:17,825 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-14 02:08:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 02:08:17,826 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 02:08:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 02:08:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 02:08:17,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 02:08:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure send_mode_select [2022-07-14 02:08:17,826 INFO L138 BoogieDeclarations]: Found implementation of procedure send_mode_select [2022-07-14 02:08:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-14 02:08:17,827 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-14 02:08:17,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 02:08:17,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 02:08:17,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 02:08:17,827 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 02:08:17,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 02:08:17,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 02:08:17,827 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 02:08:17,828 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 02:08:17,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 02:08:17,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-14 02:08:17,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-14 02:08:17,828 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_unregister_device_handler [2022-07-14 02:08:17,828 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_unregister_device_handler [2022-07-14 02:08:17,828 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-14 02:08:17,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-14 02:08:17,829 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-14 02:08:17,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-14 02:08:17,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 02:08:17,829 INFO L130 BoogieDeclarations]: Found specification of procedure submit_inquiry [2022-07-14 02:08:17,829 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_inquiry [2022-07-14 02:08:17,829 INFO L130 BoogieDeclarations]: Found specification of procedure rdac_bus_detach [2022-07-14 02:08:17,829 INFO L138 BoogieDeclarations]: Found implementation of procedure rdac_bus_detach [2022-07-14 02:08:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 02:08:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 02:08:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure rdac_match [2022-07-14 02:08:17,830 INFO L138 BoogieDeclarations]: Found implementation of procedure rdac_match [2022-07-14 02:08:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 02:08:17,830 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 02:08:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 02:08:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq [2022-07-14 02:08:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq [2022-07-14 02:08:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 02:08:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 02:08:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 02:08:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-14 02:08:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-14 02:08:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-14 02:08:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 02:08:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 02:08:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure check_ownership [2022-07-14 02:08:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure check_ownership [2022-07-14 02:08:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-14 02:08:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-14 02:08:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 02:08:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 02:08:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure get_rdac_req [2022-07-14 02:08:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rdac_req [2022-07-14 02:08:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 02:08:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 02:08:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-14 02:08:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-14 02:08:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-14 02:08:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-14 02:08:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 02:08:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 02:08:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 02:08:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 02:08:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 02:08:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 02:08:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 02:08:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-14 02:08:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-14 02:08:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 02:08:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 02:08:17,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 02:08:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 02:08:17,835 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 02:08:18,154 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 02:08:18,169 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 02:08:18,466 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 02:08:19,352 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 02:08:19,364 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 02:08:19,364 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 02:08:19,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:08:19 BoogieIcfgContainer [2022-07-14 02:08:19,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 02:08:19,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 02:08:19,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 02:08:19,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 02:08:19,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:08:16" (1/3) ... [2022-07-14 02:08:19,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1545b4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:08:19, skipping insertion in model container [2022-07-14 02:08:19,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:08:17" (2/3) ... [2022-07-14 02:08:19,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1545b4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:08:19, skipping insertion in model container [2022-07-14 02:08:19,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:08:19" (3/3) ... [2022-07-14 02:08:19,372 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--device_handler--scsi_dh_rdac.ko-entry_point.cil.out.i [2022-07-14 02:08:19,381 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 02:08:19,381 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 02:08:19,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 02:08:19,466 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@48c5f7d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2a1901b4 [2022-07-14 02:08:19,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 02:08:19,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 591 states, 436 states have (on average 1.3944954128440368) internal successors, (608), 456 states have internal predecessors, (608), 115 states have call successors, (115), 39 states have call predecessors, (115), 38 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-14 02:08:19,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-14 02:08:19,478 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:19,479 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:08:19,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:19,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash 108901425, now seen corresponding path program 1 times [2022-07-14 02:08:19,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:19,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438608614] [2022-07-14 02:08:19,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:19,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:19,897 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-14 02:08:19,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:19,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438608614] [2022-07-14 02:08:19,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438608614] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:19,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:08:19,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 02:08:19,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260789791] [2022-07-14 02:08:19,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:19,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:08:19,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:19,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:08:19,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:08:19,923 INFO L87 Difference]: Start difference. First operand has 591 states, 436 states have (on average 1.3944954128440368) internal successors, (608), 456 states have internal predecessors, (608), 115 states have call successors, (115), 39 states have call predecessors, (115), 38 states have return successors, (111), 110 states have call predecessors, (111), 111 states have call successors, (111) Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 02:08:20,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:20,743 INFO L93 Difference]: Finished difference Result 1251 states and 1835 transitions. [2022-07-14 02:08:20,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 02:08:20,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2022-07-14 02:08:20,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:20,770 INFO L225 Difference]: With dead ends: 1251 [2022-07-14 02:08:20,771 INFO L226 Difference]: Without dead ends: 646 [2022-07-14 02:08:20,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-14 02:08:20,785 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 525 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:20,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1213 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 02:08:20,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2022-07-14 02:08:20,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 572. [2022-07-14 02:08:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 425 states have (on average 1.3858823529411766) internal successors, (589), 439 states have internal predecessors, (589), 109 states have call successors, (109), 38 states have call predecessors, (109), 37 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2022-07-14 02:08:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 806 transitions. [2022-07-14 02:08:20,881 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 806 transitions. Word has length 73 [2022-07-14 02:08:20,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:20,882 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 806 transitions. [2022-07-14 02:08:20,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 02:08:20,882 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 806 transitions. [2022-07-14 02:08:20,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-14 02:08:20,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:20,889 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:08:20,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 02:08:20,889 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:20,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:20,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1555888661, now seen corresponding path program 1 times [2022-07-14 02:08:20,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:20,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628848656] [2022-07-14 02:08:20,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:20,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:21,116 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-14 02:08:21,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:21,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628848656] [2022-07-14 02:08:21,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628848656] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:21,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:08:21,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 02:08:21,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198872849] [2022-07-14 02:08:21,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:21,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 02:08:21,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 02:08:21,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 02:08:21,119 INFO L87 Difference]: Start difference. First operand 572 states and 806 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 02:08:22,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:22,362 INFO L93 Difference]: Finished difference Result 1439 states and 2028 transitions. [2022-07-14 02:08:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:08:22,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 73 [2022-07-14 02:08:22,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:22,367 INFO L225 Difference]: With dead ends: 1439 [2022-07-14 02:08:22,367 INFO L226 Difference]: Without dead ends: 880 [2022-07-14 02:08:22,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 02:08:22,370 INFO L413 NwaCegarLoop]: 805 mSDtfsCounter, 727 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 2166 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:22,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 2166 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 02:08:22,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-07-14 02:08:22,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 780. [2022-07-14 02:08:22,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 584 states have (on average 1.3715753424657535) internal successors, (801), 600 states have internal predecessors, (801), 139 states have call successors, (139), 57 states have call predecessors, (139), 56 states have return successors, (138), 137 states have call predecessors, (138), 138 states have call successors, (138) [2022-07-14 02:08:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1078 transitions. [2022-07-14 02:08:22,396 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1078 transitions. Word has length 73 [2022-07-14 02:08:22,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:22,397 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1078 transitions. [2022-07-14 02:08:22,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-07-14 02:08:22,397 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1078 transitions. [2022-07-14 02:08:22,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-07-14 02:08:22,398 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:22,399 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:08:22,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 02:08:22,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:22,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:22,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1054445077, now seen corresponding path program 1 times [2022-07-14 02:08:22,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:22,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996085750] [2022-07-14 02:08:22,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:22,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:22,614 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-14 02:08:22,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:22,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996085750] [2022-07-14 02:08:22,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996085750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:22,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:08:22,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 02:08:22,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800341251] [2022-07-14 02:08:22,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:22,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 02:08:22,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:22,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 02:08:22,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:08:22,616 INFO L87 Difference]: Start difference. First operand 780 states and 1078 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 02:08:24,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:24,417 INFO L93 Difference]: Finished difference Result 2211 states and 3238 transitions. [2022-07-14 02:08:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 02:08:24,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 106 [2022-07-14 02:08:24,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:24,426 INFO L225 Difference]: With dead ends: 2211 [2022-07-14 02:08:24,426 INFO L226 Difference]: Without dead ends: 1454 [2022-07-14 02:08:24,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-07-14 02:08:24,430 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 1443 mSDsluCounter, 3972 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 5056 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:24,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 5056 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [573 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-14 02:08:24,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2022-07-14 02:08:24,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 783. [2022-07-14 02:08:24,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 587 states have (on average 1.3696763202725724) internal successors, (804), 603 states have internal predecessors, (804), 139 states have call successors, (139), 57 states have call predecessors, (139), 56 states have return successors, (138), 137 states have call predecessors, (138), 138 states have call successors, (138) [2022-07-14 02:08:24,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1081 transitions. [2022-07-14 02:08:24,464 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1081 transitions. Word has length 106 [2022-07-14 02:08:24,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:24,465 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 1081 transitions. [2022-07-14 02:08:24,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 02:08:24,465 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1081 transitions. [2022-07-14 02:08:24,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-14 02:08:24,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:24,467 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:08:24,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 02:08:24,467 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:24,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:24,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1710414679, now seen corresponding path program 1 times [2022-07-14 02:08:24,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:24,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033365935] [2022-07-14 02:08:24,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:24,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:24,671 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-07-14 02:08:24,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:24,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033365935] [2022-07-14 02:08:24,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033365935] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:24,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:08:24,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 02:08:24,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220777679] [2022-07-14 02:08:24,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:24,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 02:08:24,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:24,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 02:08:24,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:08:24,674 INFO L87 Difference]: Start difference. First operand 783 states and 1081 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 02:08:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:26,895 INFO L93 Difference]: Finished difference Result 2217 states and 3243 transitions. [2022-07-14 02:08:26,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 02:08:26,896 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 107 [2022-07-14 02:08:26,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:26,903 INFO L225 Difference]: With dead ends: 2217 [2022-07-14 02:08:26,903 INFO L226 Difference]: Without dead ends: 1457 [2022-07-14 02:08:26,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-14 02:08:26,909 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 2911 mSDsluCounter, 4509 mSDsCounter, 0 mSdLazyCounter, 2265 mSolverCounterSat, 963 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 5509 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 963 IncrementalHoareTripleChecker+Valid, 2265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:26,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2975 Valid, 5509 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [963 Valid, 2265 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-14 02:08:26,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2022-07-14 02:08:26,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 789. [2022-07-14 02:08:26,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 593 states have (on average 1.3659359190556493) internal successors, (810), 609 states have internal predecessors, (810), 139 states have call successors, (139), 57 states have call predecessors, (139), 56 states have return successors, (138), 137 states have call predecessors, (138), 138 states have call successors, (138) [2022-07-14 02:08:26,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1087 transitions. [2022-07-14 02:08:26,944 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1087 transitions. Word has length 107 [2022-07-14 02:08:26,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:26,945 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1087 transitions. [2022-07-14 02:08:26,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 02:08:26,946 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1087 transitions. [2022-07-14 02:08:26,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-14 02:08:26,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:26,947 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:08:26,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 02:08:26,947 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:26,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:26,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1563484263, now seen corresponding path program 1 times [2022-07-14 02:08:26,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:26,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402221253] [2022-07-14 02:08:26,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:26,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:27,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:27,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:27,140 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-07-14 02:08:27,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:27,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402221253] [2022-07-14 02:08:27,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402221253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:27,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:08:27,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 02:08:27,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825106492] [2022-07-14 02:08:27,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:27,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 02:08:27,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:27,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 02:08:27,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 02:08:27,142 INFO L87 Difference]: Start difference. First operand 789 states and 1087 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 02:08:28,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:28,123 INFO L93 Difference]: Finished difference Result 994 states and 1381 transitions. [2022-07-14 02:08:28,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:08:28,124 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), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 107 [2022-07-14 02:08:28,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:28,128 INFO L225 Difference]: With dead ends: 994 [2022-07-14 02:08:28,128 INFO L226 Difference]: Without dead ends: 991 [2022-07-14 02:08:28,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 02:08:28,129 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 1035 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:28,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 1738 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-14 02:08:28,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2022-07-14 02:08:28,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 877. [2022-07-14 02:08:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 646 states have (on average 1.3606811145510835) internal successors, (879), 674 states have internal predecessors, (879), 159 states have call successors, (159), 72 states have call predecessors, (159), 71 states have return successors, (171), 152 states have call predecessors, (171), 158 states have call successors, (171) [2022-07-14 02:08:28,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1209 transitions. [2022-07-14 02:08:28,156 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1209 transitions. Word has length 107 [2022-07-14 02:08:28,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:28,157 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1209 transitions. [2022-07-14 02:08:28,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-14 02:08:28,157 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1209 transitions. [2022-07-14 02:08:28,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-07-14 02:08:28,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:28,160 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:28,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 02:08:28,161 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:28,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:28,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1961629115, now seen corresponding path program 1 times [2022-07-14 02:08:28,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:28,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039209296] [2022-07-14 02:08:28,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:28,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 02:08:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 02:08:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-07-14 02:08:28,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:28,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039209296] [2022-07-14 02:08:28,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039209296] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:28,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:08:28,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 02:08:28,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727216940] [2022-07-14 02:08:28,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:28,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 02:08:28,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:28,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 02:08:28,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-07-14 02:08:28,374 INFO L87 Difference]: Start difference. First operand 877 states and 1209 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 02:08:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:30,807 INFO L93 Difference]: Finished difference Result 2856 states and 4172 transitions. [2022-07-14 02:08:30,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 02:08:30,807 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 196 [2022-07-14 02:08:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:30,816 INFO L225 Difference]: With dead ends: 2856 [2022-07-14 02:08:30,816 INFO L226 Difference]: Without dead ends: 2002 [2022-07-14 02:08:30,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-07-14 02:08:30,820 INFO L413 NwaCegarLoop]: 1128 mSDtfsCounter, 2364 mSDsluCounter, 5275 mSDsCounter, 0 mSdLazyCounter, 2655 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 3497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 2655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:30,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 6403 Invalid, 3497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 2655 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-14 02:08:30,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2022-07-14 02:08:30,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 880. [2022-07-14 02:08:30,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 649 states have (on average 1.3590138674884438) internal successors, (882), 677 states have internal predecessors, (882), 159 states have call successors, (159), 72 states have call predecessors, (159), 71 states have return successors, (171), 152 states have call predecessors, (171), 158 states have call successors, (171) [2022-07-14 02:08:30,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1212 transitions. [2022-07-14 02:08:30,884 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1212 transitions. Word has length 196 [2022-07-14 02:08:30,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:30,885 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1212 transitions. [2022-07-14 02:08:30,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-14 02:08:30,885 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1212 transitions. [2022-07-14 02:08:30,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-14 02:08:30,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:30,889 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:30,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 02:08:30,889 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:30,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:30,890 INFO L85 PathProgramCache]: Analyzing trace with hash -180062072, now seen corresponding path program 1 times [2022-07-14 02:08:30,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:30,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547368652] [2022-07-14 02:08:30,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:30,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:30,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:30,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:30,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:31,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:31,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 02:08:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 02:08:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-14 02:08:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:31,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-14 02:08:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-07-14 02:08:31,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:31,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547368652] [2022-07-14 02:08:31,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547368652] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:31,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282029052] [2022-07-14 02:08:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:31,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:31,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:31,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:08:31,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 02:08:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:31,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 2466 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 02:08:31,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:08:31,747 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-14 02:08:31,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:08:31,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282029052] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:31,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:08:31,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-14 02:08:31,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496765979] [2022-07-14 02:08:31,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:31,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:08:31,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:31,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:08:31,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-14 02:08:31,749 INFO L87 Difference]: Start difference. First operand 880 states and 1212 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 02:08:31,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:31,802 INFO L93 Difference]: Finished difference Result 1739 states and 2400 transitions. [2022-07-14 02:08:31,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:08:31,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 217 [2022-07-14 02:08:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:31,816 INFO L225 Difference]: With dead ends: 1739 [2022-07-14 02:08:31,816 INFO L226 Difference]: Without dead ends: 882 [2022-07-14 02:08:31,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-14 02:08:31,821 INFO L413 NwaCegarLoop]: 804 mSDtfsCounter, 1 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:31,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1605 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:08:31,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-07-14 02:08:31,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 881. [2022-07-14 02:08:31,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 650 states have (on average 1.3584615384615384) internal successors, (883), 678 states have internal predecessors, (883), 159 states have call successors, (159), 72 states have call predecessors, (159), 71 states have return successors, (171), 152 states have call predecessors, (171), 158 states have call successors, (171) [2022-07-14 02:08:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1213 transitions. [2022-07-14 02:08:31,854 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1213 transitions. Word has length 217 [2022-07-14 02:08:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:31,854 INFO L495 AbstractCegarLoop]: Abstraction has 881 states and 1213 transitions. [2022-07-14 02:08:31,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 02:08:31,855 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1213 transitions. [2022-07-14 02:08:31,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-14 02:08:31,858 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:31,859 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:31,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 02:08:32,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:32,071 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:32,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:32,072 INFO L85 PathProgramCache]: Analyzing trace with hash -999931764, now seen corresponding path program 1 times [2022-07-14 02:08:32,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:32,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673034784] [2022-07-14 02:08:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:32,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 02:08:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-14 02:08:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 02:08:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 02:08:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,341 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-07-14 02:08:32,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:32,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673034784] [2022-07-14 02:08:32,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673034784] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:32,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817440512] [2022-07-14 02:08:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:32,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:32,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:32,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:08:32,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 02:08:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:32,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 02:08:32,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:08:32,869 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-07-14 02:08:32,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:08:32,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817440512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:32,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:08:32,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-14 02:08:32,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329334003] [2022-07-14 02:08:32,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:32,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 02:08:32,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:32,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 02:08:32,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-14 02:08:32,872 INFO L87 Difference]: Start difference. First operand 881 states and 1213 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 02:08:32,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:32,921 INFO L93 Difference]: Finished difference Result 1743 states and 2406 transitions. [2022-07-14 02:08:32,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 02:08:32,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 219 [2022-07-14 02:08:32,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:32,925 INFO L225 Difference]: With dead ends: 1743 [2022-07-14 02:08:32,925 INFO L226 Difference]: Without dead ends: 885 [2022-07-14 02:08:32,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-14 02:08:32,928 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 3 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2402 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:32,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2402 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:08:32,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2022-07-14 02:08:32,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 884. [2022-07-14 02:08:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 884 states, 653 states have (on average 1.356814701378254) internal successors, (886), 681 states have internal predecessors, (886), 159 states have call successors, (159), 72 states have call predecessors, (159), 71 states have return successors, (171), 152 states have call predecessors, (171), 158 states have call successors, (171) [2022-07-14 02:08:32,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1216 transitions. [2022-07-14 02:08:32,959 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1216 transitions. Word has length 219 [2022-07-14 02:08:32,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:32,959 INFO L495 AbstractCegarLoop]: Abstraction has 884 states and 1216 transitions. [2022-07-14 02:08:32,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 02:08:32,960 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1216 transitions. [2022-07-14 02:08:32,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-14 02:08:32,963 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:32,963 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:33,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 02:08:33,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-07-14 02:08:33,185 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:33,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:33,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1492557938, now seen corresponding path program 1 times [2022-07-14 02:08:33,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:33,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895168930] [2022-07-14 02:08:33,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:33,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 02:08:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-14 02:08:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 02:08:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 02:08:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-07-14 02:08:33,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:33,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895168930] [2022-07-14 02:08:33,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895168930] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:33,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726861188] [2022-07-14 02:08:33,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:33,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:33,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:33,459 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:08:33,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 02:08:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:33,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 02:08:33,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:08:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-07-14 02:08:33,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:08:33,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726861188] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:33,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:08:34,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-14 02:08:34,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513406512] [2022-07-14 02:08:34,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:34,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 02:08:34,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:34,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 02:08:34,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-14 02:08:34,002 INFO L87 Difference]: Start difference. First operand 884 states and 1216 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 02:08:34,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:34,042 INFO L93 Difference]: Finished difference Result 1751 states and 2412 transitions. [2022-07-14 02:08:34,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 02:08:34,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 219 [2022-07-14 02:08:34,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:34,046 INFO L225 Difference]: With dead ends: 1751 [2022-07-14 02:08:34,047 INFO L226 Difference]: Without dead ends: 890 [2022-07-14 02:08:34,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-07-14 02:08:34,050 INFO L413 NwaCegarLoop]: 803 mSDtfsCounter, 9 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:34,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2400 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:08:34,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-07-14 02:08:34,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 886. [2022-07-14 02:08:34,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 655 states have (on average 1.3557251908396946) internal successors, (888), 683 states have internal predecessors, (888), 159 states have call successors, (159), 72 states have call predecessors, (159), 71 states have return successors, (171), 152 states have call predecessors, (171), 158 states have call successors, (171) [2022-07-14 02:08:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1218 transitions. [2022-07-14 02:08:34,076 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1218 transitions. Word has length 219 [2022-07-14 02:08:34,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:34,076 INFO L495 AbstractCegarLoop]: Abstraction has 886 states and 1218 transitions. [2022-07-14 02:08:34,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-14 02:08:34,076 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1218 transitions. [2022-07-14 02:08:34,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-14 02:08:34,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:34,080 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:34,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 02:08:34,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:34,295 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:34,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:34,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1835058704, now seen corresponding path program 1 times [2022-07-14 02:08:34,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:34,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278038559] [2022-07-14 02:08:34,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:34,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 02:08:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-14 02:08:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 02:08:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 02:08:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:34,538 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-07-14 02:08:34,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:34,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278038559] [2022-07-14 02:08:34,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278038559] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:34,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234266315] [2022-07-14 02:08:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:34,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:34,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:34,540 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:08:34,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 02:08:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 2487 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 02:08:35,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:08:35,094 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-07-14 02:08:35,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:08:35,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234266315] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:35,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:08:35,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-07-14 02:08:35,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500716294] [2022-07-14 02:08:35,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:35,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 02:08:35,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:35,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 02:08:35,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-07-14 02:08:35,096 INFO L87 Difference]: Start difference. First operand 886 states and 1218 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 5 states have internal predecessors, (129), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-14 02:08:35,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:35,159 INFO L93 Difference]: Finished difference Result 1960 states and 2741 transitions. [2022-07-14 02:08:35,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:08:35,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 5 states have internal predecessors, (129), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 219 [2022-07-14 02:08:35,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:35,165 INFO L225 Difference]: With dead ends: 1960 [2022-07-14 02:08:35,165 INFO L226 Difference]: Without dead ends: 1097 [2022-07-14 02:08:35,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-07-14 02:08:35,168 INFO L413 NwaCegarLoop]: 1042 mSDtfsCounter, 198 mSDsluCounter, 3933 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 4975 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:35,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 4975 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:08:35,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-07-14 02:08:35,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 891. [2022-07-14 02:08:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 659 states have (on average 1.3535660091047041) internal successors, (892), 686 states have internal predecessors, (892), 159 states have call successors, (159), 72 states have call predecessors, (159), 72 states have return successors, (175), 153 states have call predecessors, (175), 158 states have call successors, (175) [2022-07-14 02:08:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1226 transitions. [2022-07-14 02:08:35,198 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1226 transitions. Word has length 219 [2022-07-14 02:08:35,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:35,198 INFO L495 AbstractCegarLoop]: Abstraction has 891 states and 1226 transitions. [2022-07-14 02:08:35,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 5 states have internal predecessors, (129), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-14 02:08:35,198 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1226 transitions. [2022-07-14 02:08:35,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-07-14 02:08:35,202 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:35,202 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:08:35,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 02:08:35,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:35,415 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:35,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:35,416 INFO L85 PathProgramCache]: Analyzing trace with hash 768803548, now seen corresponding path program 1 times [2022-07-14 02:08:35,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:35,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988561037] [2022-07-14 02:08:35,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:35,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 02:08:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 02:08:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-14 02:08:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 02:08:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-14 02:08:35,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:35,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988561037] [2022-07-14 02:08:35,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988561037] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:35,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063557525] [2022-07-14 02:08:35,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:35,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:35,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:35,683 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:08:35,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 02:08:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 2773 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 02:08:36,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:08:36,281 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-07-14 02:08:36,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:08:36,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063557525] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:36,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:08:36,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-07-14 02:08:36,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041387926] [2022-07-14 02:08:36,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:36,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 02:08:36,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:36,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 02:08:36,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-07-14 02:08:36,284 INFO L87 Difference]: Start difference. First operand 891 states and 1226 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-14 02:08:36,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:36,360 INFO L93 Difference]: Finished difference Result 1971 states and 2759 transitions. [2022-07-14 02:08:36,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:08:36,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 235 [2022-07-14 02:08:36,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:36,366 INFO L225 Difference]: With dead ends: 1971 [2022-07-14 02:08:36,366 INFO L226 Difference]: Without dead ends: 1103 [2022-07-14 02:08:36,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-07-14 02:08:36,369 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 200 mSDsluCounter, 3936 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 4979 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:36,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 4979 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:08:36,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2022-07-14 02:08:36,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 892. [2022-07-14 02:08:36,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 659 states have (on average 1.3535660091047041) internal successors, (892), 687 states have internal predecessors, (892), 160 states have call successors, (160), 72 states have call predecessors, (160), 72 states have return successors, (176), 154 states have call predecessors, (176), 159 states have call successors, (176) [2022-07-14 02:08:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1228 transitions. [2022-07-14 02:08:36,400 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1228 transitions. Word has length 235 [2022-07-14 02:08:36,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:36,400 INFO L495 AbstractCegarLoop]: Abstraction has 892 states and 1228 transitions. [2022-07-14 02:08:36,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-14 02:08:36,400 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1228 transitions. [2022-07-14 02:08:36,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-07-14 02:08:36,405 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:36,405 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:08:36,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 02:08:36,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-14 02:08:36,619 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:36,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:36,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1959405798, now seen corresponding path program 1 times [2022-07-14 02:08:36,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:36,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035719459] [2022-07-14 02:08:36,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:36,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:36,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:36,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 02:08:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 02:08:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-14 02:08:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:36,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 02:08:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-07-14 02:08:36,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:36,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035719459] [2022-07-14 02:08:36,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035719459] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:36,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137672227] [2022-07-14 02:08:36,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:36,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:36,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:36,868 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:08:36,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 02:08:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:37,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 2770 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 02:08:37,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:08:37,454 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-07-14 02:08:37,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:08:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-07-14 02:08:37,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137672227] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:08:37,593 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 02:08:37,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 13 [2022-07-14 02:08:37,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304100091] [2022-07-14 02:08:37,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 02:08:37,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 02:08:37,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:37,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 02:08:37,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-07-14 02:08:37,595 INFO L87 Difference]: Start difference. First operand 892 states and 1228 transitions. Second operand has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 2 states have call successors, (47), 8 states have call predecessors, (47), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 02:08:39,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:39,413 INFO L93 Difference]: Finished difference Result 1900 states and 2642 transitions. [2022-07-14 02:08:39,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 02:08:39,414 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 2 states have call successors, (47), 8 states have call predecessors, (47), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 235 [2022-07-14 02:08:39,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:39,418 INFO L225 Difference]: With dead ends: 1900 [2022-07-14 02:08:39,418 INFO L226 Difference]: Without dead ends: 1031 [2022-07-14 02:08:39,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 526 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-07-14 02:08:39,434 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 775 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 3705 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:39,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 3705 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-14 02:08:39,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-07-14 02:08:39,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 898. [2022-07-14 02:08:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 665 states have (on average 1.350375939849624) internal successors, (898), 693 states have internal predecessors, (898), 160 states have call successors, (160), 72 states have call predecessors, (160), 72 states have return successors, (176), 154 states have call predecessors, (176), 159 states have call successors, (176) [2022-07-14 02:08:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1234 transitions. [2022-07-14 02:08:39,468 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1234 transitions. Word has length 235 [2022-07-14 02:08:39,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:39,469 INFO L495 AbstractCegarLoop]: Abstraction has 898 states and 1234 transitions. [2022-07-14 02:08:39,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 7 states have internal predecessors, (162), 2 states have call successors, (47), 8 states have call predecessors, (47), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-14 02:08:39,469 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1234 transitions. [2022-07-14 02:08:39,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-14 02:08:39,474 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:39,474 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:08:39,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 02:08:39,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:39,692 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:39,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:39,692 INFO L85 PathProgramCache]: Analyzing trace with hash -39000410, now seen corresponding path program 2 times [2022-07-14 02:08:39,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:39,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975917358] [2022-07-14 02:08:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:39,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:39,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:39,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 02:08:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 02:08:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-14 02:08:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:40,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-14 02:08:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-14 02:08:40,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:40,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975917358] [2022-07-14 02:08:40,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975917358] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:40,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:08:40,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 02:08:40,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520326176] [2022-07-14 02:08:40,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:40,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 02:08:40,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:40,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 02:08:40,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-14 02:08:40,009 INFO L87 Difference]: Start difference. First operand 898 states and 1234 transitions. Second operand has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-14 02:08:41,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:41,843 INFO L93 Difference]: Finished difference Result 2172 states and 3081 transitions. [2022-07-14 02:08:41,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 02:08:41,844 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 241 [2022-07-14 02:08:41,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:41,848 INFO L225 Difference]: With dead ends: 2172 [2022-07-14 02:08:41,849 INFO L226 Difference]: Without dead ends: 1297 [2022-07-14 02:08:41,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-14 02:08:41,851 INFO L413 NwaCegarLoop]: 1046 mSDtfsCounter, 866 mSDsluCounter, 5273 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 6319 SdHoareTripleChecker+Invalid, 2845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:41,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 6319 Invalid, 2845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-14 02:08:41,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2022-07-14 02:08:41,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 903. [2022-07-14 02:08:41,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 903 states, 669 states have (on average 1.3482810164424515) internal successors, (902), 696 states have internal predecessors, (902), 160 states have call successors, (160), 72 states have call predecessors, (160), 73 states have return successors, (180), 155 states have call predecessors, (180), 159 states have call successors, (180) [2022-07-14 02:08:41,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1242 transitions. [2022-07-14 02:08:41,883 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1242 transitions. Word has length 241 [2022-07-14 02:08:41,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:41,884 INFO L495 AbstractCegarLoop]: Abstraction has 903 states and 1242 transitions. [2022-07-14 02:08:41,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-14 02:08:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1242 transitions. [2022-07-14 02:08:41,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-14 02:08:41,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:41,889 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:41,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 02:08:41,889 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:41,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:41,890 INFO L85 PathProgramCache]: Analyzing trace with hash -2140585382, now seen corresponding path program 1 times [2022-07-14 02:08:41,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:41,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829641910] [2022-07-14 02:08:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:41,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:42,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 02:08:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 02:08:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-14 02:08:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-14 02:08:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-07-14 02:08:42,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:42,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829641910] [2022-07-14 02:08:42,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829641910] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:42,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:08:42,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 02:08:42,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746502094] [2022-07-14 02:08:42,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:42,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 02:08:42,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:42,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 02:08:42,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-14 02:08:42,195 INFO L87 Difference]: Start difference. First operand 903 states and 1242 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 5 states have internal predecessors, (117), 3 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-14 02:08:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:44,445 INFO L93 Difference]: Finished difference Result 2178 states and 3089 transitions. [2022-07-14 02:08:44,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 02:08:44,446 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 5 states have internal predecessors, (117), 3 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 257 [2022-07-14 02:08:44,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:44,452 INFO L225 Difference]: With dead ends: 2178 [2022-07-14 02:08:44,452 INFO L226 Difference]: Without dead ends: 1298 [2022-07-14 02:08:44,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-07-14 02:08:44,455 INFO L413 NwaCegarLoop]: 1074 mSDtfsCounter, 1160 mSDsluCounter, 5429 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 3153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:44,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 6503 Invalid, 3153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-14 02:08:44,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2022-07-14 02:08:44,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 900. [2022-07-14 02:08:44,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 667 states have (on average 1.3493253373313343) internal successors, (900), 694 states have internal predecessors, (900), 160 states have call successors, (160), 72 states have call predecessors, (160), 72 states have return successors, (176), 155 states have call predecessors, (176), 159 states have call successors, (176) [2022-07-14 02:08:44,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1236 transitions. [2022-07-14 02:08:44,494 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1236 transitions. Word has length 257 [2022-07-14 02:08:44,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:44,495 INFO L495 AbstractCegarLoop]: Abstraction has 900 states and 1236 transitions. [2022-07-14 02:08:44,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 5 states have internal predecessors, (117), 3 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-14 02:08:44,495 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1236 transitions. [2022-07-14 02:08:44,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-14 02:08:44,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:44,499 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:44,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-14 02:08:44,500 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:44,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:44,500 INFO L85 PathProgramCache]: Analyzing trace with hash -2000036772, now seen corresponding path program 1 times [2022-07-14 02:08:44,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:44,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040617928] [2022-07-14 02:08:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:44,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-14 02:08:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 02:08:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-14 02:08:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-14 02:08:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:44,833 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 02:08:44,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:44,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040617928] [2022-07-14 02:08:44,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040617928] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:44,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92614445] [2022-07-14 02:08:44,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:44,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:44,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:44,835 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) [2022-07-14 02:08:44,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 02:08:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:45,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 02:08:45,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:08:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 62 proven. 16 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-14 02:08:45,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:08:45,714 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 02:08:45,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92614445] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:08:45,714 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 02:08:45,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 19 [2022-07-14 02:08:45,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096678234] [2022-07-14 02:08:45,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 02:08:45,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-14 02:08:45,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:45,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-14 02:08:45,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2022-07-14 02:08:45,716 INFO L87 Difference]: Start difference. First operand 900 states and 1236 transitions. Second operand has 19 states, 19 states have (on average 9.473684210526315) internal successors, (180), 13 states have internal predecessors, (180), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 02:08:47,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:47,442 INFO L93 Difference]: Finished difference Result 1922 states and 2667 transitions. [2022-07-14 02:08:47,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 02:08:47,442 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 9.473684210526315) internal successors, (180), 13 states have internal predecessors, (180), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 257 [2022-07-14 02:08:47,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:47,447 INFO L225 Difference]: With dead ends: 1922 [2022-07-14 02:08:47,447 INFO L226 Difference]: Without dead ends: 1045 [2022-07-14 02:08:47,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2022-07-14 02:08:47,450 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 660 mSDsluCounter, 3685 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 4443 SdHoareTripleChecker+Invalid, 2490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:47,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 4443 Invalid, 2490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [533 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-14 02:08:47,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2022-07-14 02:08:47,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 912. [2022-07-14 02:08:47,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 679 states have (on average 1.3431516936671575) internal successors, (912), 706 states have internal predecessors, (912), 160 states have call successors, (160), 72 states have call predecessors, (160), 72 states have return successors, (176), 155 states have call predecessors, (176), 159 states have call successors, (176) [2022-07-14 02:08:47,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1248 transitions. [2022-07-14 02:08:47,487 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1248 transitions. Word has length 257 [2022-07-14 02:08:47,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:47,487 INFO L495 AbstractCegarLoop]: Abstraction has 912 states and 1248 transitions. [2022-07-14 02:08:47,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.473684210526315) internal successors, (180), 13 states have internal predecessors, (180), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 02:08:47,488 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1248 transitions. [2022-07-14 02:08:47,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-07-14 02:08:47,492 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:47,492 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:47,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-14 02:08:47,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:47,716 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:47,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:47,716 INFO L85 PathProgramCache]: Analyzing trace with hash 589758580, now seen corresponding path program 2 times [2022-07-14 02:08:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:47,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169162113] [2022-07-14 02:08:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:47,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:47,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:47,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:47,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:47,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:47,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:47,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:47,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:47,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:48,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-14 02:08:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 02:08:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-07-14 02:08:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 02:08:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 02:08:48,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:48,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169162113] [2022-07-14 02:08:48,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169162113] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:48,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308538759] [2022-07-14 02:08:48,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:08:48,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:48,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:48,124 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) [2022-07-14 02:08:48,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 02:08:48,915 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 02:08:48,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:08:48,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 3188 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-14 02:08:48,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:08:48,969 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 62 proven. 100 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-14 02:08:48,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:08:49,264 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 02:08:49,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308538759] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:08:49,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 02:08:49,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 13] total 31 [2022-07-14 02:08:49,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152074674] [2022-07-14 02:08:49,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 02:08:49,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-07-14 02:08:49,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:49,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-07-14 02:08:49,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=611, Unknown=0, NotChecked=0, Total=930 [2022-07-14 02:08:49,266 INFO L87 Difference]: Start difference. First operand 912 states and 1248 transitions. Second operand has 31 states, 31 states have (on average 6.580645161290323) internal successors, (204), 25 states have internal predecessors, (204), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 02:08:51,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:51,388 INFO L93 Difference]: Finished difference Result 1958 states and 2709 transitions. [2022-07-14 02:08:51,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-14 02:08:51,389 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 6.580645161290323) internal successors, (204), 25 states have internal predecessors, (204), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 269 [2022-07-14 02:08:51,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:51,395 INFO L225 Difference]: With dead ends: 1958 [2022-07-14 02:08:51,395 INFO L226 Difference]: Without dead ends: 1069 [2022-07-14 02:08:51,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=338, Invalid=784, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 02:08:51,399 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 791 mSDsluCounter, 4573 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 5335 SdHoareTripleChecker+Invalid, 3172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:51,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 5335 Invalid, 3172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [655 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-14 02:08:51,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2022-07-14 02:08:51,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 936. [2022-07-14 02:08:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 703 states have (on average 1.3314366998577525) internal successors, (936), 730 states have internal predecessors, (936), 160 states have call successors, (160), 72 states have call predecessors, (160), 72 states have return successors, (176), 155 states have call predecessors, (176), 159 states have call successors, (176) [2022-07-14 02:08:51,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1272 transitions. [2022-07-14 02:08:51,452 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1272 transitions. Word has length 269 [2022-07-14 02:08:51,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:51,453 INFO L495 AbstractCegarLoop]: Abstraction has 936 states and 1272 transitions. [2022-07-14 02:08:51,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.580645161290323) internal successors, (204), 25 states have internal predecessors, (204), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 02:08:51,454 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1272 transitions. [2022-07-14 02:08:51,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-07-14 02:08:51,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:51,459 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:51,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 02:08:51,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-14 02:08:51,672 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:51,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:51,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1511056220, now seen corresponding path program 3 times [2022-07-14 02:08:51,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:51,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073803718] [2022-07-14 02:08:51,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:51,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:52,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 02:08:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 02:08:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 02:08:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:08:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 02:08:52,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-14 02:08:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-07-14 02:08:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:52,343 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 2 proven. 484 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 02:08:52,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:52,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073803718] [2022-07-14 02:08:52,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073803718] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:52,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748954815] [2022-07-14 02:08:52,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 02:08:52,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:52,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:52,345 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) [2022-07-14 02:08:52,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 02:08:53,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-14 02:08:53,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:08:53,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 2083 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-14 02:08:53,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:08:53,306 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-07-14 02:08:53,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:08:53,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748954815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:08:53,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:08:53,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [31] total 34 [2022-07-14 02:08:53,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690028254] [2022-07-14 02:08:53,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:08:53,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:08:53,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:53,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:08:53,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=797, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 02:08:53,309 INFO L87 Difference]: Start difference. First operand 936 states and 1272 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-14 02:08:53,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:53,389 INFO L93 Difference]: Finished difference Result 1858 states and 2541 transitions. [2022-07-14 02:08:53,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 02:08:53,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 293 [2022-07-14 02:08:53,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:53,392 INFO L225 Difference]: With dead ends: 1858 [2022-07-14 02:08:53,393 INFO L226 Difference]: Without dead ends: 945 [2022-07-14 02:08:53,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=797, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 02:08:53,396 INFO L413 NwaCegarLoop]: 805 mSDtfsCounter, 3 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:53,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3210 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:08:53,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2022-07-14 02:08:53,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 940. [2022-07-14 02:08:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 706 states have (on average 1.3300283286118981) internal successors, (939), 733 states have internal predecessors, (939), 160 states have call successors, (160), 72 states have call predecessors, (160), 73 states have return successors, (178), 156 states have call predecessors, (178), 159 states have call successors, (178) [2022-07-14 02:08:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1277 transitions. [2022-07-14 02:08:53,433 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1277 transitions. Word has length 293 [2022-07-14 02:08:53,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:53,433 INFO L495 AbstractCegarLoop]: Abstraction has 940 states and 1277 transitions. [2022-07-14 02:08:53,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-14 02:08:53,434 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1277 transitions. [2022-07-14 02:08:53,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-07-14 02:08:53,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:53,437 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:53,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 02:08:53,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-14 02:08:53,652 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:53,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:53,653 INFO L85 PathProgramCache]: Analyzing trace with hash -829362658, now seen corresponding path program 1 times [2022-07-14 02:08:53,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:53,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136199629] [2022-07-14 02:08:53,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:53,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:54,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:54,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:08:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 02:08:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 02:08:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 02:08:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-14 02:08:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:54,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:08:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 02:08:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-14 02:08:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:54,218 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 2 proven. 484 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-14 02:08:54,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:54,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136199629] [2022-07-14 02:08:54,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136199629] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:54,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684369520] [2022-07-14 02:08:54,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:54,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:54,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:54,229 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) [2022-07-14 02:08:54,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 02:08:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:55,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 3456 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-14 02:08:55,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:08:55,152 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 65 proven. 484 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-14 02:08:55,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:08:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 2 proven. 484 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-07-14 02:08:55,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684369520] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:08:55,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 02:08:55,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 25, 25] total 39 [2022-07-14 02:08:55,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854482876] [2022-07-14 02:08:55,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 02:08:55,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-07-14 02:08:55,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:08:55,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-07-14 02:08:55,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=547, Invalid=935, Unknown=0, NotChecked=0, Total=1482 [2022-07-14 02:08:55,490 INFO L87 Difference]: Start difference. First operand 940 states and 1277 transitions. Second operand has 39 states, 39 states have (on average 5.846153846153846) internal successors, (228), 33 states have internal predecessors, (228), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 02:08:57,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:08:57,800 INFO L93 Difference]: Finished difference Result 2002 states and 2748 transitions. [2022-07-14 02:08:57,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-07-14 02:08:57,803 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.846153846153846) internal successors, (228), 33 states have internal predecessors, (228), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 299 [2022-07-14 02:08:57,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:08:57,808 INFO L225 Difference]: With dead ends: 2002 [2022-07-14 02:08:57,808 INFO L226 Difference]: Without dead ends: 1085 [2022-07-14 02:08:57,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=566, Invalid=1156, Unknown=0, NotChecked=0, Total=1722 [2022-07-14 02:08:57,811 INFO L413 NwaCegarLoop]: 764 mSDtfsCounter, 491 mSDsluCounter, 5109 mSDsCounter, 0 mSdLazyCounter, 2883 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 5873 SdHoareTripleChecker+Invalid, 3246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 2883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:08:57,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 5873 Invalid, 3246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 2883 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 02:08:57,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-07-14 02:08:57,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 956. [2022-07-14 02:08:57,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 722 states have (on average 1.3227146814404431) internal successors, (955), 749 states have internal predecessors, (955), 160 states have call successors, (160), 72 states have call predecessors, (160), 73 states have return successors, (178), 156 states have call predecessors, (178), 159 states have call successors, (178) [2022-07-14 02:08:57,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1293 transitions. [2022-07-14 02:08:57,862 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1293 transitions. Word has length 299 [2022-07-14 02:08:57,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:08:57,862 INFO L495 AbstractCegarLoop]: Abstraction has 956 states and 1293 transitions. [2022-07-14 02:08:57,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.846153846153846) internal successors, (228), 33 states have internal predecessors, (228), 2 states have call successors, (50), 8 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 02:08:57,863 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1293 transitions. [2022-07-14 02:08:57,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-07-14 02:08:57,867 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:08:57,867 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:08:57,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-14 02:08:58,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-14 02:08:58,084 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:08:58,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:08:58,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1262301698, now seen corresponding path program 2 times [2022-07-14 02:08:58,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:08:58,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011904033] [2022-07-14 02:08:58,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:08:58,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:08:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:08:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:08:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:08:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:08:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:08:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:08:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:08:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:08:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:08:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 02:08:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-14 02:08:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-14 02:08:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-14 02:08:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:08:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:08:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:08:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:08:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 02:08:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-14 02:08:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:08:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2022-07-14 02:08:58,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:08:58,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011904033] [2022-07-14 02:08:58,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011904033] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:08:58,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200935762] [2022-07-14 02:08:58,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:08:58,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:08:58,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:08:58,640 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:08:58,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-14 02:09:00,091 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 02:09:00,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:09:00,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 3576 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 02:09:00,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:09:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2022-07-14 02:09:00,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:09:00,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200935762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:09:00,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:09:00,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2022-07-14 02:09:00,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499741894] [2022-07-14 02:09:00,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:09:00,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 02:09:00,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:09:00,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 02:09:00,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-07-14 02:09:00,206 INFO L87 Difference]: Start difference. First operand 956 states and 1293 transitions. Second operand has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28) [2022-07-14 02:09:00,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:09:00,475 INFO L93 Difference]: Finished difference Result 1910 states and 2595 transitions. [2022-07-14 02:09:00,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 02:09:00,476 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28) Word has length 315 [2022-07-14 02:09:00,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:09:00,480 INFO L225 Difference]: With dead ends: 1910 [2022-07-14 02:09:00,481 INFO L226 Difference]: Without dead ends: 962 [2022-07-14 02:09:00,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-07-14 02:09:00,484 INFO L413 NwaCegarLoop]: 811 mSDtfsCounter, 22 mSDsluCounter, 3170 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3981 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:09:00,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3981 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 02:09:00,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-07-14 02:09:00,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 959. [2022-07-14 02:09:00,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 724 states have (on average 1.3218232044198894) internal successors, (957), 752 states have internal predecessors, (957), 160 states have call successors, (160), 72 states have call predecessors, (160), 74 states have return successors, (179), 156 states have call predecessors, (179), 159 states have call successors, (179) [2022-07-14 02:09:00,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1296 transitions. [2022-07-14 02:09:00,562 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1296 transitions. Word has length 315 [2022-07-14 02:09:00,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:09:00,562 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 1296 transitions. [2022-07-14 02:09:00,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 5 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28) [2022-07-14 02:09:00,563 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1296 transitions. [2022-07-14 02:09:00,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-07-14 02:09:00,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:09:00,571 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 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] [2022-07-14 02:09:00,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-14 02:09:00,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:09:00,783 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:09:00,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:09:00,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1359695942, now seen corresponding path program 1 times [2022-07-14 02:09:00,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:09:00,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406363863] [2022-07-14 02:09:00,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:09:00,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:09:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:09:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:09:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:09:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:09:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:09:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:09:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 02:09:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:09:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 02:09:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:09:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-14 02:09:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 02:09:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-14 02:09:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-14 02:09:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:09:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 02:09:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:09:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-14 02:09:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-14 02:09:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:01,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1060 trivial. 0 not checked. [2022-07-14 02:09:01,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:09:01,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406363863] [2022-07-14 02:09:01,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406363863] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:09:01,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658654207] [2022-07-14 02:09:01,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:09:01,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:09:01,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:09:01,236 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:09:01,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-14 02:09:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:02,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 3654 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-14 02:09:02,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:09:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 1044 trivial. 0 not checked. [2022-07-14 02:09:02,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:09:02,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658654207] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:09:02,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:09:02,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 13 [2022-07-14 02:09:02,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333202390] [2022-07-14 02:09:02,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:09:02,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 02:09:02,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:09:02,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 02:09:02,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-14 02:09:02,571 INFO L87 Difference]: Start difference. First operand 959 states and 1296 transitions. Second operand has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:09:02,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:09:02,694 INFO L93 Difference]: Finished difference Result 2106 states and 2893 transitions. [2022-07-14 02:09:02,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:09:02,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) Word has length 319 [2022-07-14 02:09:02,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:09:02,699 INFO L225 Difference]: With dead ends: 2106 [2022-07-14 02:09:02,699 INFO L226 Difference]: Without dead ends: 1170 [2022-07-14 02:09:02,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-07-14 02:09:02,703 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 187 mSDsluCounter, 4704 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 5679 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:09:02,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 5679 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:09:02,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2022-07-14 02:09:02,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 966. [2022-07-14 02:09:02,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 729 states have (on average 1.3196159122085047) internal successors, (962), 757 states have internal predecessors, (962), 160 states have call successors, (160), 72 states have call predecessors, (160), 76 states have return successors, (183), 158 states have call predecessors, (183), 159 states have call successors, (183) [2022-07-14 02:09:02,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1305 transitions. [2022-07-14 02:09:02,755 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1305 transitions. Word has length 319 [2022-07-14 02:09:02,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:09:02,756 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1305 transitions. [2022-07-14 02:09:02,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:09:02,756 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1305 transitions. [2022-07-14 02:09:02,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-07-14 02:09:02,761 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:09:02,761 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-07-14 02:09:02,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-14 02:09:02,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:09:02,969 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:09:02,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:09:02,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1464494367, now seen corresponding path program 1 times [2022-07-14 02:09:02,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:09:02,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470951291] [2022-07-14 02:09:02,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:09:02,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:09:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:09:03,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:09:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:09:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:09:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:09:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:09:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 02:09:03,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:09:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 02:09:03,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:09:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-14 02:09:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 02:09:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-14 02:09:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-14 02:09:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 02:09:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 02:09:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:09:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-14 02:09:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-14 02:09:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 1089 trivial. 0 not checked. [2022-07-14 02:09:03,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:09:03,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470951291] [2022-07-14 02:09:03,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470951291] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:09:03,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213804334] [2022-07-14 02:09:03,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:09:03,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:09:03,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:09:03,479 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:09:03,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-14 02:09:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:04,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 3721 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-14 02:09:04,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:09:04,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 1060 trivial. 0 not checked. [2022-07-14 02:09:04,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:09:04,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213804334] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:09:04,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:09:04,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15] total 15 [2022-07-14 02:09:04,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964994447] [2022-07-14 02:09:04,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:09:04,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 02:09:04,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:09:04,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 02:09:04,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-14 02:09:04,757 INFO L87 Difference]: Start difference. First operand 966 states and 1305 transitions. Second operand has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 7 states have internal predecessors, (147), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-14 02:09:04,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:09:04,947 INFO L93 Difference]: Finished difference Result 1953 states and 2653 transitions. [2022-07-14 02:09:04,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 02:09:04,949 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 7 states have internal predecessors, (147), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) Word has length 339 [2022-07-14 02:09:04,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:09:04,954 INFO L225 Difference]: With dead ends: 1953 [2022-07-14 02:09:04,954 INFO L226 Difference]: Without dead ends: 1010 [2022-07-14 02:09:04,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-07-14 02:09:04,957 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 22 mSDsluCounter, 5576 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 6377 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:09:04,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 6377 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 02:09:04,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2022-07-14 02:09:05,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 976. [2022-07-14 02:09:05,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 738 states have (on average 1.3197831978319783) internal successors, (974), 765 states have internal predecessors, (974), 161 states have call successors, (161), 72 states have call predecessors, (161), 76 states have return successors, (184), 160 states have call predecessors, (184), 160 states have call successors, (184) [2022-07-14 02:09:05,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1319 transitions. [2022-07-14 02:09:05,026 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1319 transitions. Word has length 339 [2022-07-14 02:09:05,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:09:05,026 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 1319 transitions. [2022-07-14 02:09:05,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 7 states have internal predecessors, (147), 3 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (28), 5 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-14 02:09:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1319 transitions. [2022-07-14 02:09:05,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-07-14 02:09:05,031 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:09:05,031 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-07-14 02:09:05,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-14 02:09:05,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-14 02:09:05,244 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:09:05,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:09:05,245 INFO L85 PathProgramCache]: Analyzing trace with hash -14777961, now seen corresponding path program 1 times [2022-07-14 02:09:05,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:09:05,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975691108] [2022-07-14 02:09:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:09:05,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:09:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:09:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:09:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:09:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:09:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:09:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:09:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 02:09:06,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:09:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 02:09:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 02:09:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 02:09:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-07-14 02:09:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-14 02:09:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-14 02:09:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:09:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 02:09:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 02:09:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 02:09:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-14 02:09:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1306 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2022-07-14 02:09:06,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:09:06,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975691108] [2022-07-14 02:09:06,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975691108] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:09:06,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85159388] [2022-07-14 02:09:06,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:09:06,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:09:06,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:09:06,523 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:09:06,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-14 02:09:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:08,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 3855 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 02:09:08,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:09:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1306 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1281 trivial. 0 not checked. [2022-07-14 02:09:08,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:09:08,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85159388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:09:08,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:09:08,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 12 [2022-07-14 02:09:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554991977] [2022-07-14 02:09:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:09:08,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 02:09:08,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:09:08,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 02:09:08,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-14 02:09:08,594 INFO L87 Difference]: Start difference. First operand 976 states and 1319 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:09:08,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:09:08,657 INFO L93 Difference]: Finished difference Result 1935 states and 2672 transitions. [2022-07-14 02:09:08,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 02:09:08,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 379 [2022-07-14 02:09:08,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:09:08,661 INFO L225 Difference]: With dead ends: 1935 [2022-07-14 02:09:08,661 INFO L226 Difference]: Without dead ends: 982 [2022-07-14 02:09:08,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 463 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-07-14 02:09:08,665 INFO L413 NwaCegarLoop]: 801 mSDtfsCounter, 2 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:09:08,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2396 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:09:08,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2022-07-14 02:09:08,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 982. [2022-07-14 02:09:08,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 742 states have (on average 1.320754716981132) internal successors, (980), 771 states have internal predecessors, (980), 161 states have call successors, (161), 72 states have call predecessors, (161), 78 states have return successors, (189), 160 states have call predecessors, (189), 160 states have call successors, (189) [2022-07-14 02:09:08,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1330 transitions. [2022-07-14 02:09:08,706 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1330 transitions. Word has length 379 [2022-07-14 02:09:08,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:09:08,706 INFO L495 AbstractCegarLoop]: Abstraction has 982 states and 1330 transitions. [2022-07-14 02:09:08,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-14 02:09:08,706 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1330 transitions. [2022-07-14 02:09:08,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-07-14 02:09:08,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:09:08,710 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-07-14 02:09:08,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-14 02:09:08,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:09:08,924 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:09:08,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:09:08,924 INFO L85 PathProgramCache]: Analyzing trace with hash 66602619, now seen corresponding path program 1 times [2022-07-14 02:09:08,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:09:08,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078106650] [2022-07-14 02:09:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:09:08,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:09:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:09:10,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:09:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:09:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:09:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-14 02:09:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:09:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-14 02:09:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:09:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 02:09:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 02:09:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 02:09:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-14 02:09:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-14 02:09:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-07-14 02:09:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:09:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 02:09:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 02:09:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 02:09:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-14 02:09:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:10,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 1307 trivial. 0 not checked. [2022-07-14 02:09:10,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:09:10,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078106650] [2022-07-14 02:09:10,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078106650] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:09:10,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105143536] [2022-07-14 02:09:10,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:09:10,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:09:10,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:09:10,865 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:09:10,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-14 02:09:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:12,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 3900 conjuncts, 45 conjunts are in the unsatisfiable core [2022-07-14 02:09:12,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:09:12,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 191 proven. 707 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2022-07-14 02:09:12,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:09:13,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1321 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 1302 trivial. 0 not checked. [2022-07-14 02:09:13,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105143536] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:09:13,161 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 02:09:13,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 21, 5] total 32 [2022-07-14 02:09:13,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411115972] [2022-07-14 02:09:13,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 02:09:13,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-14 02:09:13,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:09:13,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-14 02:09:13,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=912, Unknown=0, NotChecked=0, Total=992 [2022-07-14 02:09:13,163 INFO L87 Difference]: Start difference. First operand 982 states and 1330 transitions. Second operand has 32 states, 31 states have (on average 8.612903225806452) internal successors, (267), 26 states have internal predecessors, (267), 3 states have call successors, (55), 8 states have call predecessors, (55), 5 states have return successors, (43), 2 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-14 02:09:18,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:09:18,250 INFO L93 Difference]: Finished difference Result 2067 states and 2870 transitions. [2022-07-14 02:09:18,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-14 02:09:18,250 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 8.612903225806452) internal successors, (267), 26 states have internal predecessors, (267), 3 states have call successors, (55), 8 states have call predecessors, (55), 5 states have return successors, (43), 2 states have call predecessors, (43), 3 states have call successors, (43) Word has length 382 [2022-07-14 02:09:18,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:09:18,254 INFO L225 Difference]: With dead ends: 2067 [2022-07-14 02:09:18,254 INFO L226 Difference]: Without dead ends: 1105 [2022-07-14 02:09:18,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 891 GetRequests, 830 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=301, Invalid=3359, Unknown=0, NotChecked=0, Total=3660 [2022-07-14 02:09:18,258 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 1113 mSDsluCounter, 12647 mSDsCounter, 0 mSdLazyCounter, 7527 mSolverCounterSat, 670 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 13406 SdHoareTripleChecker+Invalid, 8197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 670 IncrementalHoareTripleChecker+Valid, 7527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-14 02:09:18,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 13406 Invalid, 8197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [670 Valid, 7527 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-14 02:09:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2022-07-14 02:09:18,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 998. [2022-07-14 02:09:18,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 757 states have (on average 1.3302509907529723) internal successors, (1007), 785 states have internal predecessors, (1007), 161 states have call successors, (161), 74 states have call predecessors, (161), 79 states have return successors, (190), 160 states have call predecessors, (190), 160 states have call successors, (190) [2022-07-14 02:09:18,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1358 transitions. [2022-07-14 02:09:18,304 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1358 transitions. Word has length 382 [2022-07-14 02:09:18,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:09:18,304 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1358 transitions. [2022-07-14 02:09:18,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 8.612903225806452) internal successors, (267), 26 states have internal predecessors, (267), 3 states have call successors, (55), 8 states have call predecessors, (55), 5 states have return successors, (43), 2 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-14 02:09:18,305 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1358 transitions. [2022-07-14 02:09:18,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-07-14 02:09:18,308 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:09:18,309 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-07-14 02:09:18,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-14 02:09:18,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:09:18,523 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:09:18,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:09:18,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1130840471, now seen corresponding path program 2 times [2022-07-14 02:09:18,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:09:18,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533211040] [2022-07-14 02:09:18,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:09:18,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:09:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:09:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:09:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:09:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 02:09:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:09:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:09:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-14 02:09:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:09:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 02:09:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 02:09:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 02:09:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-14 02:09:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-14 02:09:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-14 02:09:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:09:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 02:09:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-14 02:09:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 02:09:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-14 02:09:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 1347 trivial. 0 not checked. [2022-07-14 02:09:20,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:09:20,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533211040] [2022-07-14 02:09:20,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533211040] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:09:20,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811460826] [2022-07-14 02:09:20,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 02:09:20,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:09:20,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:09:20,837 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:09:20,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-14 02:09:24,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 02:09:24,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 02:09:24,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 4005 conjuncts, 37 conjunts are in the unsatisfiable core [2022-07-14 02:09:24,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:09:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 54 proven. 270 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2022-07-14 02:09:24,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:09:25,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 49 proven. 3 refuted. 0 times theorem prover too weak. 1339 trivial. 0 not checked. [2022-07-14 02:09:25,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811460826] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:09:25,343 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 02:09:25,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 6] total 26 [2022-07-14 02:09:25,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967772098] [2022-07-14 02:09:25,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 02:09:25,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-14 02:09:25,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:09:25,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-14 02:09:25,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2022-07-14 02:09:25,345 INFO L87 Difference]: Start difference. First operand 998 states and 1358 transitions. Second operand has 26 states, 25 states have (on average 8.84) internal successors, (221), 20 states have internal predecessors, (221), 3 states have call successors, (47), 8 states have call predecessors, (47), 5 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2022-07-14 02:09:28,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:09:28,526 INFO L93 Difference]: Finished difference Result 2141 states and 2998 transitions. [2022-07-14 02:09:28,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-14 02:09:28,527 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 8.84) internal successors, (221), 20 states have internal predecessors, (221), 3 states have call successors, (47), 8 states have call predecessors, (47), 5 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) Word has length 389 [2022-07-14 02:09:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:09:28,531 INFO L225 Difference]: With dead ends: 2141 [2022-07-14 02:09:28,532 INFO L226 Difference]: Without dead ends: 1159 [2022-07-14 02:09:28,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 902 GetRequests, 850 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=405, Invalid=2145, Unknown=0, NotChecked=0, Total=2550 [2022-07-14 02:09:28,536 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 1166 mSDsluCounter, 6657 mSDsCounter, 0 mSdLazyCounter, 3992 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 7417 SdHoareTripleChecker+Invalid, 4672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 3992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-14 02:09:28,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 7417 Invalid, 4672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 3992 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-14 02:09:28,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2022-07-14 02:09:28,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1030. [2022-07-14 02:09:28,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 787 states have (on average 1.3456162642947904) internal successors, (1059), 815 states have internal predecessors, (1059), 161 states have call successors, (161), 76 states have call predecessors, (161), 81 states have return successors, (189), 160 states have call predecessors, (189), 160 states have call successors, (189) [2022-07-14 02:09:28,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1409 transitions. [2022-07-14 02:09:28,592 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1409 transitions. Word has length 389 [2022-07-14 02:09:28,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:09:28,592 INFO L495 AbstractCegarLoop]: Abstraction has 1030 states and 1409 transitions. [2022-07-14 02:09:28,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 8.84) internal successors, (221), 20 states have internal predecessors, (221), 3 states have call successors, (47), 8 states have call predecessors, (47), 5 states have return successors, (38), 2 states have call predecessors, (38), 3 states have call successors, (38) [2022-07-14 02:09:28,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1409 transitions. [2022-07-14 02:09:28,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-07-14 02:09:28,596 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:09:28,597 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 23, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2022-07-14 02:09:28,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-14 02:09:28,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-07-14 02:09:28,812 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:09:28,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:09:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1238147935, now seen corresponding path program 3 times [2022-07-14 02:09:28,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:09:28,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044003497] [2022-07-14 02:09:28,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:09:28,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:09:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 02:09:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 02:09:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 02:09:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-14 02:09:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:09:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 02:09:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:09:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-14 02:09:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:09:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 02:09:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 02:09:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 02:09:30,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 02:09:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-14 02:09:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:30,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-14 02:09:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 02:09:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 02:09:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 02:09:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 02:09:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:09:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 02:09:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 02:09:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 02:09:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-07-14 02:09:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:09:31,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1651 backedges. 2 proven. 104 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2022-07-14 02:09:31,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:09:31,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044003497] [2022-07-14 02:09:31,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044003497] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:09:31,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110401420] [2022-07-14 02:09:31,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 02:09:31,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:09:31,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:09:31,075 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 02:09:31,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process