./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.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 afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:04:47,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:04:47,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:04:47,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:04:47,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:04:47,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:04:47,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:04:47,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:04:47,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:04:47,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:04:47,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:04:47,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:04:47,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:04:47,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:04:47,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:04:47,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:04:47,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:04:47,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:04:47,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:04:47,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:04:47,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:04:47,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:04:47,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:04:47,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:04:47,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:04:47,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:04:47,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:04:47,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:04:47,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:04:47,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:04:47,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:04:47,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:04:47,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:04:47,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:04:47,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:04:47,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:04:47,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:04:47,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:04:47,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:04:47,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:04:47,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:04:47,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:04:47,482 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:04:47,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:04:47,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:04:47,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:04:47,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:04:47,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:04:47,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:04:47,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:04:47,485 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:04:47,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:04:47,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:04:47,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:04:47,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:04:47,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:04:47,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:04:47,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:04:47,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:04:47,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:04:47,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:04:47,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:04:47,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:04:47,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:04:47,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:04:47,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:04:47,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:04:47,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:04:47,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:04:47,489 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:04:47,490 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:04:47,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:04:47,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:04:47,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afcb5021e5e481beab65460a6812c8dbe401f7b06cf3fcadf18504395cd90d4a [2021-12-22 15:04:47,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:04:47,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:04:47,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:04:47,727 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:04:47,728 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:04:47,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2021-12-22 15:04:47,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d272baf/a6de9eec66534a3c9c7f4263dd551fa0/FLAGbbf63f1c4 [2021-12-22 15:04:48,371 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:04:48,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2021-12-22 15:04:48,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d272baf/a6de9eec66534a3c9c7f4263dd551fa0/FLAGbbf63f1c4 [2021-12-22 15:04:48,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d272baf/a6de9eec66534a3c9c7f4263dd551fa0 [2021-12-22 15:04:48,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:04:48,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:04:48,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:04:48,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:04:48,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:04:48,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:04:48" (1/1) ... [2021-12-22 15:04:48,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d222232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:48, skipping insertion in model container [2021-12-22 15:04:48,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:04:48" (1/1) ... [2021-12-22 15:04:48,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:04:48,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:04:49,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2021-12-22 15:04:49,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:04:49,695 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:04:49,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2021-12-22 15:04:49,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:04:49,965 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:04:49,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49 WrapperNode [2021-12-22 15:04:49,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:04:49,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:04:49,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:04:49,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:04:49,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2021-12-22 15:04:50,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2021-12-22 15:04:50,112 INFO L137 Inliner]: procedures = 173, calls = 858, calls flagged for inlining = 50, calls inlined = 47, statements flattened = 2059 [2021-12-22 15:04:50,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:04:50,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:04:50,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:04:50,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:04:50,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2021-12-22 15:04:50,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2021-12-22 15:04:50,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2021-12-22 15:04:50,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2021-12-22 15:04:50,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2021-12-22 15:04:50,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2021-12-22 15:04:50,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2021-12-22 15:04:50,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:04:50,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:04:50,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:04:50,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:04:50,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (1/1) ... [2021-12-22 15:04:50,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:04:50,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:04:50,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:04:50,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:04:50,321 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-22 15:04:50,321 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-22 15:04:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_alloc_resource [2021-12-22 15:04:50,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_alloc_resource [2021-12-22 15:04:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure add_interval [2021-12-22 15:04:50,322 INFO L138 BoogieDeclarations]: Found implementation of procedure add_interval [2021-12-22 15:04:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:04:50,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:04:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:04:50,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:04:50,322 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:04:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure sub_interval [2021-12-22 15:04:50,323 INFO L138 BoogieDeclarations]: Found implementation of procedure sub_interval [2021-12-22 15:04:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:04:50,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:04:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_mem_region [2021-12-22 15:04:50,323 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_mem_region [2021-12-22 15:04:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:04:50,323 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:04:50,323 INFO L130 BoogieDeclarations]: Found specification of procedure free_region [2021-12-22 15:04:50,324 INFO L138 BoogieDeclarations]: Found implementation of procedure free_region [2021-12-22 15:04:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2021-12-22 15:04:50,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2021-12-22 15:04:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:04:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 15:04:50,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 15:04:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure __nonstatic_adjust_io_region [2021-12-22 15:04:50,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __nonstatic_adjust_io_region [2021-12-22 15:04:50,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-22 15:04:50,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-22 15:04:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:04:50,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:04:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2021-12-22 15:04:50,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2021-12-22 15:04:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_release_resource_db [2021-12-22 15:04:50,325 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_release_resource_db [2021-12-22 15:04:50,325 INFO L130 BoogieDeclarations]: Found specification of procedure do_mem_probe [2021-12-22 15:04:50,326 INFO L138 BoogieDeclarations]: Found implementation of procedure do_mem_probe [2021-12-22 15:04:50,326 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_make_resource [2021-12-22 15:04:50,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_make_resource [2021-12-22 15:04:50,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:04:50,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:04:50,326 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_init [2021-12-22 15:04:50,327 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_init [2021-12-22 15:04:50,327 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_io [2021-12-22 15:04:50,327 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_io [2021-12-22 15:04:50,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-22 15:04:50,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-22 15:04:50,327 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 15:04:50,327 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 15:04:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:04:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 15:04:50,328 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 15:04:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-22 15:04:50,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-22 15:04:50,328 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_sysfs_add_rsrc [2021-12-22 15:04:50,329 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_sysfs_add_rsrc [2021-12-22 15:04:50,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:04:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure static_init [2021-12-22 15:04:50,330 INFO L138 BoogieDeclarations]: Found implementation of procedure static_init [2021-12-22 15:04:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:04:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:04:50,330 INFO L130 BoogieDeclarations]: Found specification of procedure do_validate_mem [2021-12-22 15:04:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure do_validate_mem [2021-12-22 15:04:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_resource [2021-12-22 15:04:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_resource [2021-12-22 15:04:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_nonstatic_validate_mem [2021-12-22 15:04:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_nonstatic_validate_mem [2021-12-22 15:04:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:04:50,331 INFO L130 BoogieDeclarations]: Found specification of procedure static_find_io [2021-12-22 15:04:50,331 INFO L138 BoogieDeclarations]: Found implementation of procedure static_find_io [2021-12-22 15:04:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-12-22 15:04:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-12-22 15:04:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure show_mem_db [2021-12-22 15:04:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure show_mem_db [2021-12-22 15:04:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_io [2021-12-22 15:04:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_io [2021-12-22 15:04:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:04:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-22 15:04:50,333 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-22 15:04:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:04:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 15:04:50,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 15:04:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 15:04:50,333 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 15:04:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 15:04:50,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 15:04:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-22 15:04:50,334 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-22 15:04:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:04:50,334 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2021-12-22 15:04:50,335 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2021-12-22 15:04:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_memory [2021-12-22 15:04:50,335 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_memory [2021-12-22 15:04:50,335 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_resource [2021-12-22 15:04:50,335 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_resource [2021-12-22 15:04:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:04:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:04:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2021-12-22 15:04:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2021-12-22 15:04:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure claim_region [2021-12-22 15:04:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_region [2021-12-22 15:04:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2021-12-22 15:04:50,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2021-12-22 15:04:50,336 INFO L130 BoogieDeclarations]: Found specification of procedure show_io_db [2021-12-22 15:04:50,337 INFO L138 BoogieDeclarations]: Found implementation of procedure show_io_db [2021-12-22 15:04:50,746 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:04:50,748 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:04:51,030 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:04:52,063 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:04:52,079 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:04:52,079 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:04:52,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:04:52 BoogieIcfgContainer [2021-12-22 15:04:52,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:04:52,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:04:52,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:04:52,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:04:52,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:04:48" (1/3) ... [2021-12-22 15:04:52,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc96886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:04:52, skipping insertion in model container [2021-12-22 15:04:52,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:04:49" (2/3) ... [2021-12-22 15:04:52,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc96886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:04:52, skipping insertion in model container [2021-12-22 15:04:52,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:04:52" (3/3) ... [2021-12-22 15:04:52,091 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2021-12-22 15:04:52,096 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:04:52,097 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:04:52,138 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:04:52,143 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:04:52,144 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:04:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 816 states, 591 states have (on average 1.3976311336717429) internal successors, (826), 608 states have internal predecessors, (826), 177 states have call successors, (177), 47 states have call predecessors, (177), 46 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) [2021-12-22 15:04:52,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-22 15:04:52,192 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:52,192 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:52,193 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:52,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash 772032677, now seen corresponding path program 1 times [2021-12-22 15:04:52,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:52,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847151299] [2021-12-22 15:04:52,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:52,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:04:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:04:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:04:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:04:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:04:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:04:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:04:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:52,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:04:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:04:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:04:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:04:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:04:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:04:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:04:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:04:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:04:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:04:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:04:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:04:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:04:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:04:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:04:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:04:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-22 15:04:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-12-22 15:04:52,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:52,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847151299] [2021-12-22 15:04:52,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847151299] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:52,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:52,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:04:52,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8302200] [2021-12-22 15:04:52,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:52,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:04:52,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:52,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:04:52,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:04:52,938 INFO L87 Difference]: Start difference. First operand has 816 states, 591 states have (on average 1.3976311336717429) internal successors, (826), 608 states have internal predecessors, (826), 177 states have call successors, (177), 47 states have call predecessors, (177), 46 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-22 15:04:54,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:54,257 INFO L93 Difference]: Finished difference Result 1816 states and 2757 transitions. [2021-12-22 15:04:54,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 15:04:54,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 262 [2021-12-22 15:04:54,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:54,277 INFO L225 Difference]: With dead ends: 1816 [2021-12-22 15:04:54,277 INFO L226 Difference]: Without dead ends: 989 [2021-12-22 15:04:54,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:54,288 INFO L933 BasicCegarLoop]: 1124 mSDtfsCounter, 1093 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 1144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 725 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:54,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 1740 Invalid, 1144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [725 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 15:04:54,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2021-12-22 15:04:54,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 800. [2021-12-22 15:04:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 586 states have (on average 1.3805460750853242) internal successors, (809), 592 states have internal predecessors, (809), 168 states have call successors, (168), 46 states have call predecessors, (168), 45 states have return successors, (163), 163 states have call predecessors, (163), 163 states have call successors, (163) [2021-12-22 15:04:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1140 transitions. [2021-12-22 15:04:54,406 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1140 transitions. Word has length 262 [2021-12-22 15:04:54,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:54,406 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 1140 transitions. [2021-12-22 15:04:54,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-22 15:04:54,407 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1140 transitions. [2021-12-22 15:04:54,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-22 15:04:54,411 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:54,411 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:54,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:04:54,411 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:54,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:54,412 INFO L85 PathProgramCache]: Analyzing trace with hash -504167243, now seen corresponding path program 1 times [2021-12-22 15:04:54,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:54,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941213529] [2021-12-22 15:04:54,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:54,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:04:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:54,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:04:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:04:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:04:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:04:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:04:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:04:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:04:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:04:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:04:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:04:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:04:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:04:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:04:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:04:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:04:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:04:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:04:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:04:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:04:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:04:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:04:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:04:54,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-22 15:04:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:54,861 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-12-22 15:04:54,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:54,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941213529] [2021-12-22 15:04:54,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941213529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:54,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:54,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:54,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72330449] [2021-12-22 15:04:54,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:54,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:54,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:54,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:54,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:54,864 INFO L87 Difference]: Start difference. First operand 800 states and 1140 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-22 15:04:56,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:56,701 INFO L93 Difference]: Finished difference Result 2634 states and 3850 transitions. [2021-12-22 15:04:56,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:04:56,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 262 [2021-12-22 15:04:56,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:56,710 INFO L225 Difference]: With dead ends: 2634 [2021-12-22 15:04:56,710 INFO L226 Difference]: Without dead ends: 1885 [2021-12-22 15:04:56,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:04:56,714 INFO L933 BasicCegarLoop]: 1189 mSDtfsCounter, 3233 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 1434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3340 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1434 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:56,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3340 Valid, 2720 Invalid, 2318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1434 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-22 15:04:56,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2021-12-22 15:04:56,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1492. [2021-12-22 15:04:56,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1107 states have (on average 1.3920505871725384) internal successors, (1541), 1116 states have internal predecessors, (1541), 294 states have call successors, (294), 91 states have call predecessors, (294), 90 states have return successors, (289), 288 states have call predecessors, (289), 289 states have call successors, (289) [2021-12-22 15:04:56,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2124 transitions. [2021-12-22 15:04:56,771 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2124 transitions. Word has length 262 [2021-12-22 15:04:56,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:56,772 INFO L470 AbstractCegarLoop]: Abstraction has 1492 states and 2124 transitions. [2021-12-22 15:04:56,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-22 15:04:56,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2124 transitions. [2021-12-22 15:04:56,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-12-22 15:04:56,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:56,775 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:56,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:04:56,775 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:56,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:56,776 INFO L85 PathProgramCache]: Analyzing trace with hash -833041377, now seen corresponding path program 1 times [2021-12-22 15:04:56,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:56,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687914112] [2021-12-22 15:04:56,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:56,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:04:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:04:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:04:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:04:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:04:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:04:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:04:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:56,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:04:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:04:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:04:57,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:04:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:04:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:04:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:04:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:04:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:04:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:04:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:04:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:04:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:04:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:04:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:04:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:04:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:57,105 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-12-22 15:04:57,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:57,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687914112] [2021-12-22 15:04:57,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687914112] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:57,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:57,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:57,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770496286] [2021-12-22 15:04:57,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:57,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:57,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:57,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:57,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:57,108 INFO L87 Difference]: Start difference. First operand 1492 states and 2124 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-22 15:04:59,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:04:59,158 INFO L93 Difference]: Finished difference Result 5077 states and 7421 transitions. [2021-12-22 15:04:59,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:04:59,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 260 [2021-12-22 15:04:59,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:04:59,182 INFO L225 Difference]: With dead ends: 5077 [2021-12-22 15:04:59,182 INFO L226 Difference]: Without dead ends: 3636 [2021-12-22 15:04:59,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:04:59,192 INFO L933 BasicCegarLoop]: 1244 mSDtfsCounter, 2357 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2456 SdHoareTripleChecker+Valid, 3421 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-22 15:04:59,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2456 Valid, 3421 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-22 15:04:59,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3636 states. [2021-12-22 15:04:59,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3636 to 2876. [2021-12-22 15:04:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2150 states have (on average 1.398139534883721) internal successors, (3006), 2163 states have internal predecessors, (3006), 545 states have call successors, (545), 181 states have call predecessors, (545), 180 states have return successors, (540), 539 states have call predecessors, (540), 540 states have call successors, (540) [2021-12-22 15:04:59,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 4091 transitions. [2021-12-22 15:04:59,340 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 4091 transitions. Word has length 260 [2021-12-22 15:04:59,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:04:59,341 INFO L470 AbstractCegarLoop]: Abstraction has 2876 states and 4091 transitions. [2021-12-22 15:04:59,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2021-12-22 15:04:59,342 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 4091 transitions. [2021-12-22 15:04:59,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-12-22 15:04:59,345 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:04:59,346 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:04:59,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:04:59,346 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:04:59,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:04:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash -2081837813, now seen corresponding path program 1 times [2021-12-22 15:04:59,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:04:59,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542260171] [2021-12-22 15:04:59,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:04:59,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:04:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:04:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:04:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:04:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:04:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:04:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:04:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:04:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:04:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:04:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:04:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:04:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:04:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:04:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:04:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:04:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:04:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:04:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:04:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:04:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:04:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:04:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:04:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:04:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:04:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:04:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:04:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-22 15:04:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:04:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-12-22 15:04:59,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:04:59,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542260171] [2021-12-22 15:04:59,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542260171] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:04:59,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:04:59,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:04:59,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253235416] [2021-12-22 15:04:59,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:04:59,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:04:59,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:04:59,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:04:59,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:04:59,717 INFO L87 Difference]: Start difference. First operand 2876 states and 4091 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-22 15:05:02,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:02,117 INFO L93 Difference]: Finished difference Result 9904 states and 14433 transitions. [2021-12-22 15:05:02,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:05:02,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 264 [2021-12-22 15:05:02,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:02,154 INFO L225 Difference]: With dead ends: 9904 [2021-12-22 15:05:02,154 INFO L226 Difference]: Without dead ends: 7079 [2021-12-22 15:05:02,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:05:02,170 INFO L933 BasicCegarLoop]: 1229 mSDtfsCounter, 2412 mSDsluCounter, 2640 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 934 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 934 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:02,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2519 Valid, 3869 Invalid, 2424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [934 Valid, 1490 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-22 15:05:02,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7079 states. [2021-12-22 15:05:02,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7079 to 5550. [2021-12-22 15:05:02,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5550 states, 4168 states have (on average 1.4006717850287909) internal successors, (5838), 4191 states have internal predecessors, (5838), 1021 states have call successors, (1021), 361 states have call predecessors, (1021), 360 states have return successors, (1016), 1013 states have call predecessors, (1016), 1016 states have call successors, (1016) [2021-12-22 15:05:02,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5550 states to 5550 states and 7875 transitions. [2021-12-22 15:05:02,417 INFO L78 Accepts]: Start accepts. Automaton has 5550 states and 7875 transitions. Word has length 264 [2021-12-22 15:05:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:02,417 INFO L470 AbstractCegarLoop]: Abstraction has 5550 states and 7875 transitions. [2021-12-22 15:05:02,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-22 15:05:02,418 INFO L276 IsEmpty]: Start isEmpty. Operand 5550 states and 7875 transitions. [2021-12-22 15:05:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-22 15:05:02,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:02,420 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:02,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 15:05:02,420 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:02,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:02,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1204796190, now seen corresponding path program 1 times [2021-12-22 15:05:02,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:02,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666154214] [2021-12-22 15:05:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:02,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:05:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:05:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:05:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:05:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:05:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:05:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:05:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:05:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:05:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:05:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:05:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:05:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:05:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:05:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:05:02,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:05:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:05:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:05:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:05:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:05:02,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-12-22 15:05:02,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:02,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666154214] [2021-12-22 15:05:02,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666154214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:05:02,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:05:02,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:05:02,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990191705] [2021-12-22 15:05:02,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:05:02,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:05:02,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:02,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:05:02,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:05:02,798 INFO L87 Difference]: Start difference. First operand 5550 states and 7875 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-22 15:05:04,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:04,163 INFO L93 Difference]: Finished difference Result 7064 states and 10396 transitions. [2021-12-22 15:05:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:05:04,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 262 [2021-12-22 15:05:04,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:04,197 INFO L225 Difference]: With dead ends: 7064 [2021-12-22 15:05:04,197 INFO L226 Difference]: Without dead ends: 7061 [2021-12-22 15:05:04,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:05:04,202 INFO L933 BasicCegarLoop]: 1082 mSDtfsCounter, 1834 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1920 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:04,203 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1920 Valid, 2163 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 15:05:04,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-22 15:05:04,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 5549. [2021-12-22 15:05:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 4168 states have (on average 1.4004318618042226) internal successors, (5837), 4190 states have internal predecessors, (5837), 1020 states have call successors, (1020), 361 states have call predecessors, (1020), 360 states have return successors, (1016), 1013 states have call predecessors, (1016), 1016 states have call successors, (1016) [2021-12-22 15:05:04,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 7873 transitions. [2021-12-22 15:05:04,505 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 7873 transitions. Word has length 262 [2021-12-22 15:05:04,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:04,505 INFO L470 AbstractCegarLoop]: Abstraction has 5549 states and 7873 transitions. [2021-12-22 15:05:04,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-22 15:05:04,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 7873 transitions. [2021-12-22 15:05:04,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-12-22 15:05:04,508 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:04,508 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:04,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 15:05:04,508 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:04,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:04,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1305726614, now seen corresponding path program 1 times [2021-12-22 15:05:04,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:04,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263764820] [2021-12-22 15:05:04,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:04,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:05:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:05:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:05:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:05:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:05:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:05:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:05:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:05:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:05:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:05:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:05:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:05:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:05:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:05:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:05:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:05:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:05:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:05:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:05:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:05:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:04,865 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-12-22 15:05:04,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:04,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263764820] [2021-12-22 15:05:04,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263764820] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:05:04,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:05:04,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:05:04,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130562426] [2021-12-22 15:05:04,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:05:04,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:05:04,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:04,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:05:04,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:05:04,868 INFO L87 Difference]: Start difference. First operand 5549 states and 7873 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-22 15:05:06,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:06,146 INFO L93 Difference]: Finished difference Result 7063 states and 10394 transitions. [2021-12-22 15:05:06,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:05:06,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 263 [2021-12-22 15:05:06,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:06,184 INFO L225 Difference]: With dead ends: 7063 [2021-12-22 15:05:06,184 INFO L226 Difference]: Without dead ends: 7060 [2021-12-22 15:05:06,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:05:06,190 INFO L933 BasicCegarLoop]: 1079 mSDtfsCounter, 1831 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1917 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:06,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1917 Valid, 2158 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 15:05:06,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7060 states. [2021-12-22 15:05:06,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7060 to 5548. [2021-12-22 15:05:06,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5548 states, 4168 states have (on average 1.4001919385796544) internal successors, (5836), 4189 states have internal predecessors, (5836), 1019 states have call successors, (1019), 361 states have call predecessors, (1019), 360 states have return successors, (1016), 1013 states have call predecessors, (1016), 1016 states have call successors, (1016) [2021-12-22 15:05:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5548 states to 5548 states and 7871 transitions. [2021-12-22 15:05:06,428 INFO L78 Accepts]: Start accepts. Automaton has 5548 states and 7871 transitions. Word has length 263 [2021-12-22 15:05:06,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:06,428 INFO L470 AbstractCegarLoop]: Abstraction has 5548 states and 7871 transitions. [2021-12-22 15:05:06,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-22 15:05:06,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5548 states and 7871 transitions. [2021-12-22 15:05:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-12-22 15:05:06,432 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:06,432 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:06,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-22 15:05:06,433 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:06,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:06,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1822527077, now seen corresponding path program 1 times [2021-12-22 15:05:06,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:06,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701714177] [2021-12-22 15:05:06,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:06,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:05:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:06,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:05:06,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:05:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:05:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:05:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:05:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:05:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:05:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:05:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:05:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:05:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:05:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:05:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:05:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:05:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:05:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:05:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:05:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:05:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:05:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-12-22 15:05:06,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:06,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701714177] [2021-12-22 15:05:06,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701714177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:05:06,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:05:06,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:05:06,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816471700] [2021-12-22 15:05:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:05:06,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:05:06,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:06,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:05:06,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:05:06,814 INFO L87 Difference]: Start difference. First operand 5548 states and 7871 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-22 15:05:08,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:08,582 INFO L93 Difference]: Finished difference Result 14305 states and 20884 transitions. [2021-12-22 15:05:08,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:05:08,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 264 [2021-12-22 15:05:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:08,622 INFO L225 Difference]: With dead ends: 14305 [2021-12-22 15:05:08,622 INFO L226 Difference]: Without dead ends: 8802 [2021-12-22 15:05:08,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:05:08,646 INFO L933 BasicCegarLoop]: 1135 mSDtfsCounter, 2306 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2373 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 848 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:08,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2373 Valid, 2553 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [848 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-22 15:05:08,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8802 states. [2021-12-22 15:05:08,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8802 to 6776. [2021-12-22 15:05:08,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6776 states, 5105 states have (on average 1.39333986287953) internal successors, (7113), 5149 states have internal predecessors, (7113), 1194 states have call successors, (1194), 470 states have call predecessors, (1194), 476 states have return successors, (1270), 1180 states have call predecessors, (1270), 1190 states have call successors, (1270) [2021-12-22 15:05:08,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6776 states to 6776 states and 9577 transitions. [2021-12-22 15:05:08,943 INFO L78 Accepts]: Start accepts. Automaton has 6776 states and 9577 transitions. Word has length 264 [2021-12-22 15:05:08,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:08,944 INFO L470 AbstractCegarLoop]: Abstraction has 6776 states and 9577 transitions. [2021-12-22 15:05:08,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-22 15:05:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 6776 states and 9577 transitions. [2021-12-22 15:05:08,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-12-22 15:05:08,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:08,950 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:08,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-22 15:05:08,950 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:08,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 553063708, now seen corresponding path program 1 times [2021-12-22 15:05:08,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:08,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163900069] [2021-12-22 15:05:08,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:08,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:05:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:05:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:09,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:05:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:05:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:05:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:05:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:05:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:05:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:05:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:05:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:05:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:05:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:05:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:05:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:05:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:05:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:05:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:05:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:05:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:05:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-22 15:05:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:05:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-22 15:05:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:05:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-22 15:05:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:09,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1031 trivial. 0 not checked. [2021-12-22 15:05:09,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:09,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163900069] [2021-12-22 15:05:09,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163900069] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:05:09,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:05:09,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 15:05:09,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827113697] [2021-12-22 15:05:09,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:05:09,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 15:05:09,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:09,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 15:05:09,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:05:09,405 INFO L87 Difference]: Start difference. First operand 6776 states and 9577 transitions. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-22 15:05:12,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:12,378 INFO L93 Difference]: Finished difference Result 26112 states and 38433 transitions. [2021-12-22 15:05:12,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 15:05:12,379 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 368 [2021-12-22 15:05:12,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:12,457 INFO L225 Difference]: With dead ends: 26112 [2021-12-22 15:05:12,458 INFO L226 Difference]: Without dead ends: 19387 [2021-12-22 15:05:12,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-22 15:05:12,486 INFO L933 BasicCegarLoop]: 1292 mSDtfsCounter, 3358 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 1669 mSolverCounterSat, 1427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3527 SdHoareTripleChecker+Valid, 4147 SdHoareTripleChecker+Invalid, 3096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1427 IncrementalHoareTripleChecker+Valid, 1669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:12,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3527 Valid, 4147 Invalid, 3096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1427 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-22 15:05:12,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19387 states. [2021-12-22 15:05:13,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19387 to 13852. [2021-12-22 15:05:13,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13852 states, 10477 states have (on average 1.395533072444402) internal successors, (14621), 10605 states have internal predecessors, (14621), 2358 states have call successors, (2358), 938 states have call predecessors, (2358), 1016 states have return successors, (2850), 2356 states have call predecessors, (2850), 2354 states have call successors, (2850) [2021-12-22 15:05:13,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13852 states to 13852 states and 19829 transitions. [2021-12-22 15:05:13,187 INFO L78 Accepts]: Start accepts. Automaton has 13852 states and 19829 transitions. Word has length 368 [2021-12-22 15:05:13,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:13,188 INFO L470 AbstractCegarLoop]: Abstraction has 13852 states and 19829 transitions. [2021-12-22 15:05:13,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-22 15:05:13,189 INFO L276 IsEmpty]: Start isEmpty. Operand 13852 states and 19829 transitions. [2021-12-22 15:05:13,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-12-22 15:05:13,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:13,193 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:13,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-22 15:05:13,193 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:13,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:13,194 INFO L85 PathProgramCache]: Analyzing trace with hash -802801169, now seen corresponding path program 1 times [2021-12-22 15:05:13,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:13,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761139164] [2021-12-22 15:05:13,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:13,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:13,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:05:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:05:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:05:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:05:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:05:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:05:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:05:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:05:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:05:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:05:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:05:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:05:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:05:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:05:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:05:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:05:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:05:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:05:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:05:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:05:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-22 15:05:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:05:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-22 15:05:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:05:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-22 15:05:13,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:13,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1031 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1031 trivial. 0 not checked. [2021-12-22 15:05:13,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:13,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761139164] [2021-12-22 15:05:13,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761139164] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:05:13,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:05:13,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 15:05:13,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614702022] [2021-12-22 15:05:13,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:05:13,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 15:05:13,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:13,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 15:05:13,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:05:13,693 INFO L87 Difference]: Start difference. First operand 13852 states and 19829 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-22 15:05:17,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:17,201 INFO L93 Difference]: Finished difference Result 47886 states and 70389 transitions. [2021-12-22 15:05:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 15:05:17,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 370 [2021-12-22 15:05:17,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:17,343 INFO L225 Difference]: With dead ends: 47886 [2021-12-22 15:05:17,343 INFO L226 Difference]: Without dead ends: 34085 [2021-12-22 15:05:17,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-22 15:05:17,392 INFO L933 BasicCegarLoop]: 1841 mSDtfsCounter, 2066 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 922 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2236 SdHoareTripleChecker+Valid, 5472 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 922 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:17,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2236 Valid, 5472 Invalid, 2883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [922 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-22 15:05:17,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34085 states. [2021-12-22 15:05:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34085 to 24312. [2021-12-22 15:05:18,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24312 states, 18349 states have (on average 1.390538993950624) internal successors, (25515), 18565 states have internal predecessors, (25515), 4156 states have call successors, (4156), 1688 states have call predecessors, (4156), 1806 states have return successors, (4928), 4146 states have call predecessors, (4928), 4152 states have call successors, (4928) [2021-12-22 15:05:18,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24312 states to 24312 states and 34599 transitions. [2021-12-22 15:05:18,618 INFO L78 Accepts]: Start accepts. Automaton has 24312 states and 34599 transitions. Word has length 370 [2021-12-22 15:05:18,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:18,619 INFO L470 AbstractCegarLoop]: Abstraction has 24312 states and 34599 transitions. [2021-12-22 15:05:18,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (40), 7 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-22 15:05:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 24312 states and 34599 transitions. [2021-12-22 15:05:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-12-22 15:05:18,626 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:18,626 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:18,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-22 15:05:18,627 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:18,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:18,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1064280, now seen corresponding path program 1 times [2021-12-22 15:05:18,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:18,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50233777] [2021-12-22 15:05:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:18,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:05:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:05:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:05:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:05:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:05:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:05:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:05:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:05:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:05:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:05:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:05:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:05:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:05:18,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:05:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:05:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:05:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:05:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:05:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:18,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:05:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:05:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-22 15:05:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:19,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-22 15:05:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-22 15:05:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-22 15:05:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-22 15:05:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-22 15:05:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-22 15:05:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-22 15:05:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-22 15:05:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-22 15:05:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2021-12-22 15:05:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 440 [2021-12-22 15:05:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2021-12-22 15:05:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:19,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2745 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2745 trivial. 0 not checked. [2021-12-22 15:05:19,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:19,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50233777] [2021-12-22 15:05:19,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50233777] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:05:19,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:05:19,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 15:05:19,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764828785] [2021-12-22 15:05:19,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:05:19,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 15:05:19,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:19,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 15:05:19,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-22 15:05:19,240 INFO L87 Difference]: Start difference. First operand 24312 states and 34599 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-22 15:05:22,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:22,829 INFO L93 Difference]: Finished difference Result 36540 states and 53669 transitions. [2021-12-22 15:05:22,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-22 15:05:22,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 457 [2021-12-22 15:05:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:22,962 INFO L225 Difference]: With dead ends: 36540 [2021-12-22 15:05:22,963 INFO L226 Difference]: Without dead ends: 31848 [2021-12-22 15:05:22,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-22 15:05:22,995 INFO L933 BasicCegarLoop]: 1249 mSDtfsCounter, 1884 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 1085 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1926 SdHoareTripleChecker+Valid, 3719 SdHoareTripleChecker+Invalid, 3436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1085 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:22,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1926 Valid, 3719 Invalid, 3436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1085 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-22 15:05:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31848 states. [2021-12-22 15:05:23,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31848 to 22100. [2021-12-22 15:05:23,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22100 states, 16632 states have (on average 1.3852813852813852) internal successors, (23040), 16751 states have internal predecessors, (23040), 3887 states have call successors, (3887), 1615 states have call predecessors, (3887), 1580 states have return successors, (3850), 3813 states have call predecessors, (3850), 3850 states have call successors, (3850) [2021-12-22 15:05:23,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22100 states to 22100 states and 30777 transitions. [2021-12-22 15:05:23,907 INFO L78 Accepts]: Start accepts. Automaton has 22100 states and 30777 transitions. Word has length 457 [2021-12-22 15:05:23,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:23,908 INFO L470 AbstractCegarLoop]: Abstraction has 22100 states and 30777 transitions. [2021-12-22 15:05:23,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (42), 7 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-22 15:05:23,908 INFO L276 IsEmpty]: Start isEmpty. Operand 22100 states and 30777 transitions. [2021-12-22 15:05:23,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2021-12-22 15:05:23,965 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:23,965 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:23,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-22 15:05:23,965 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:23,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:23,966 INFO L85 PathProgramCache]: Analyzing trace with hash -352947031, now seen corresponding path program 1 times [2021-12-22 15:05:23,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:23,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813235368] [2021-12-22 15:05:23,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:23,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:05:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:05:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:05:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:05:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:05:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:05:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:05:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:05:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:05:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:05:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:05:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:05:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:05:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:05:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:05:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:05:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:05:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:05:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:05:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:05:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-22 15:05:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-22 15:05:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-22 15:05:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-22 15:05:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-22 15:05:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-22 15:05:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-22 15:05:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-22 15:05:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-22 15:05:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-22 15:05:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-12-22 15:05:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:05:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2021-12-22 15:05:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:05:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2021-12-22 15:05:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:24,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2788 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2788 trivial. 0 not checked. [2021-12-22 15:05:24,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:24,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813235368] [2021-12-22 15:05:24,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813235368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:05:24,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:05:24,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-22 15:05:24,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990240397] [2021-12-22 15:05:24,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:05:24,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-22 15:05:24,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:24,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-22 15:05:24,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:05:24,509 INFO L87 Difference]: Start difference. First operand 22100 states and 30777 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (50), 7 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-12-22 15:05:27,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:27,305 INFO L93 Difference]: Finished difference Result 54781 states and 79135 transitions. [2021-12-22 15:05:27,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:05:27,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (50), 7 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 551 [2021-12-22 15:05:27,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:27,426 INFO L225 Difference]: With dead ends: 54781 [2021-12-22 15:05:27,426 INFO L226 Difference]: Without dead ends: 32732 [2021-12-22 15:05:27,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:05:27,473 INFO L933 BasicCegarLoop]: 1094 mSDtfsCounter, 935 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:27,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [967 Valid, 3363 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-22 15:05:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32732 states. [2021-12-22 15:05:28,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32732 to 22124. [2021-12-22 15:05:28,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22124 states, 16656 states have (on average 1.3847262247838616) internal successors, (23064), 16775 states have internal predecessors, (23064), 3887 states have call successors, (3887), 1615 states have call predecessors, (3887), 1580 states have return successors, (3850), 3813 states have call predecessors, (3850), 3850 states have call successors, (3850) [2021-12-22 15:05:28,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22124 states to 22124 states and 30801 transitions. [2021-12-22 15:05:28,317 INFO L78 Accepts]: Start accepts. Automaton has 22124 states and 30801 transitions. Word has length 551 [2021-12-22 15:05:28,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:28,318 INFO L470 AbstractCegarLoop]: Abstraction has 22124 states and 30801 transitions. [2021-12-22 15:05:28,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (50), 7 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-12-22 15:05:28,318 INFO L276 IsEmpty]: Start isEmpty. Operand 22124 states and 30801 transitions. [2021-12-22 15:05:28,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2021-12-22 15:05:28,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:28,374 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:28,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-22 15:05:28,374 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:28,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:28,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1809865688, now seen corresponding path program 1 times [2021-12-22 15:05:28,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:28,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818488321] [2021-12-22 15:05:28,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:28,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:05:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:05:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:05:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:05:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:05:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:05:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:05:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:05:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:05:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:05:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:05:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:05:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:05:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:05:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:05:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:05:28,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:05:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:05:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:05:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:05:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-22 15:05:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-22 15:05:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-22 15:05:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-22 15:05:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-22 15:05:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-22 15:05:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-22 15:05:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-22 15:05:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-22 15:05:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-22 15:05:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-12-22 15:05:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:28,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:05:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2021-12-22 15:05:29,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:05:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2021-12-22 15:05:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2788 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2767 trivial. 0 not checked. [2021-12-22 15:05:29,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:29,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818488321] [2021-12-22 15:05:29,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818488321] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 15:05:29,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885186766] [2021-12-22 15:05:29,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:29,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:05:29,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:05:29,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:05:29,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 15:05:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:30,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 4146 conjuncts, 74 conjunts are in the unsatisfiable core [2021-12-22 15:05:30,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:05:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2788 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 2761 trivial. 0 not checked. [2021-12-22 15:05:30,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 15:05:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2788 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2767 trivial. 0 not checked. [2021-12-22 15:05:32,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885186766] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 15:05:32,548 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 15:05:32,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 16] total 36 [2021-12-22 15:05:32,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839107214] [2021-12-22 15:05:32,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 15:05:32,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-12-22 15:05:32,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:05:32,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-12-22 15:05:32,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1170, Unknown=0, NotChecked=0, Total=1260 [2021-12-22 15:05:32,550 INFO L87 Difference]: Start difference. First operand 22124 states and 30801 transitions. Second operand has 36 states, 36 states have (on average 5.666666666666667) internal successors, (204), 21 states have internal predecessors, (204), 4 states have call successors, (96), 7 states have call predecessors, (96), 12 states have return successors, (59), 14 states have call predecessors, (59), 4 states have call successors, (59) [2021-12-22 15:05:38,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:05:38,565 INFO L93 Difference]: Finished difference Result 55925 states and 83423 transitions. [2021-12-22 15:05:38,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-12-22 15:05:38,566 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.666666666666667) internal successors, (204), 21 states have internal predecessors, (204), 4 states have call successors, (96), 7 states have call predecessors, (96), 12 states have return successors, (59), 14 states have call predecessors, (59), 4 states have call successors, (59) Word has length 550 [2021-12-22 15:05:38,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:05:38,848 INFO L225 Difference]: With dead ends: 55925 [2021-12-22 15:05:38,848 INFO L226 Difference]: Without dead ends: 33852 [2021-12-22 15:05:38,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1297 GetRequests, 1243 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=265, Invalid=2815, Unknown=0, NotChecked=0, Total=3080 [2021-12-22 15:05:38,904 INFO L933 BasicCegarLoop]: 1109 mSDtfsCounter, 1162 mSDsluCounter, 21717 mSDsCounter, 0 mSdLazyCounter, 6306 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 22826 SdHoareTripleChecker+Invalid, 7001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 6306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:05:38,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1214 Valid, 22826 Invalid, 7001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 6306 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-22 15:05:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33852 states. [2021-12-22 15:05:39,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33852 to 23124. [2021-12-22 15:05:39,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23124 states, 17416 states have (on average 1.3702342673403767) internal successors, (23864), 17535 states have internal predecessors, (23864), 3927 states have call successors, (3927), 1615 states have call predecessors, (3927), 1780 states have return successors, (4402), 4053 states have call predecessors, (4402), 3890 states have call successors, (4402) [2021-12-22 15:05:39,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23124 states to 23124 states and 32193 transitions. [2021-12-22 15:05:39,840 INFO L78 Accepts]: Start accepts. Automaton has 23124 states and 32193 transitions. Word has length 550 [2021-12-22 15:05:39,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:05:39,841 INFO L470 AbstractCegarLoop]: Abstraction has 23124 states and 32193 transitions. [2021-12-22 15:05:39,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.666666666666667) internal successors, (204), 21 states have internal predecessors, (204), 4 states have call successors, (96), 7 states have call predecessors, (96), 12 states have return successors, (59), 14 states have call predecessors, (59), 4 states have call successors, (59) [2021-12-22 15:05:39,842 INFO L276 IsEmpty]: Start isEmpty. Operand 23124 states and 32193 transitions. [2021-12-22 15:05:39,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2021-12-22 15:05:39,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:05:39,896 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:05:39,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 15:05:40,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-22 15:05:40,117 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:05:40,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:05:40,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1720562640, now seen corresponding path program 1 times [2021-12-22 15:05:40,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:05:40,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036664185] [2021-12-22 15:05:40,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:40,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:05:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 15:05:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-22 15:05:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 15:05:40,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 15:05:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-22 15:05:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-22 15:05:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-22 15:05:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:05:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-22 15:05:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-22 15:05:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-22 15:05:40,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:05:40,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-22 15:05:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 15:05:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-22 15:05:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-22 15:05:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-22 15:05:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:05:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-22 15:05:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-22 15:05:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-22 15:05:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-22 15:05:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-22 15:05:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-22 15:05:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-22 15:05:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-22 15:05:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2021-12-22 15:05:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-22 15:05:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-22 15:05:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-12-22 15:05:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-22 15:05:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2021-12-22 15:05:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-22 15:05:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:05:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-12-22 15:05:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:05:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:05:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2021-12-22 15:05:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:05:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2021-12-22 15:05:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:05:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2860 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 2839 trivial. 0 not checked. [2021-12-22 15:05:40,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:05:40,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036664185] [2021-12-22 15:05:40,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036664185] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 15:05:40,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279410727] [2021-12-22 15:05:40,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:05:40,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:05:40,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:05:40,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:05:40,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 15:05:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:05:41,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 4165 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-22 15:05:41,994 INFO L286 TraceCheckSpWp]: Computing forward predicates...