./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.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 a9a20f3f691c8614da828fa262b8d39a0b290d1ce7d7bab1e11653a91cb5fcdd --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:05:41,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:05:41,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:05:41,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:05:41,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:05:41,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:05:41,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:05:41,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:05:41,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:05:41,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:05:41,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:05:41,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:05:41,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:05:41,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:05:41,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:05:41,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:05:41,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:05:41,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:05:41,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:05:41,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:05:41,451 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:05:41,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:05:41,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:05:41,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:05:41,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:05:41,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:05:41,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:05:41,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:05:41,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:05:41,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:05:41,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:05:41,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:05:41,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:05:41,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:05:41,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:05:41,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:05:41,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:05:41,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:05:41,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:05:41,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:05:41,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:05:41,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:05:41,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:05:41,504 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:05:41,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:05:41,505 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:05:41,505 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:05:41,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:05:41,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:05:41,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:05:41,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:05:41,507 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:05:41,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:05:41,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:05:41,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:05:41,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:05:41,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:05:41,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:05:41,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:05:41,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:05:41,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:05:41,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:05:41,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:05:41,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:05:41,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:05:41,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:05:41,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:05:41,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:05:41,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:05:41,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:05:41,513 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:05:41,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:05:41,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:05:41,513 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9a20f3f691c8614da828fa262b8d39a0b290d1ce7d7bab1e11653a91cb5fcdd [2022-07-14 00:05:41,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:05:41,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:05:41,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:05:41,757 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:05:41,758 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:05:41,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2022-07-14 00:05:41,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/244445f83/e1b1634ed53b485dbf9dd970b2ff82f2/FLAG0cffeb642 [2022-07-14 00:05:42,391 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:05:42,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2022-07-14 00:05:42,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/244445f83/e1b1634ed53b485dbf9dd970b2ff82f2/FLAG0cffeb642 [2022-07-14 00:05:42,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/244445f83/e1b1634ed53b485dbf9dd970b2ff82f2 [2022-07-14 00:05:42,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:05:42,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:05:42,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:05:42,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:05:42,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:05:42,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:05:42" (1/1) ... [2022-07-14 00:05:42,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6bc937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:42, skipping insertion in model container [2022-07-14 00:05:42,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:05:42" (1/1) ... [2022-07-14 00:05:42,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:05:42,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:05:43,477 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i[161908,161921] [2022-07-14 00:05:43,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:05:43,852 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:05:43,959 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i[161908,161921] [2022-07-14 00:05:44,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:05:44,076 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:05:44,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44 WrapperNode [2022-07-14 00:05:44,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:05:44,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:05:44,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:05:44,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:05:44,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (1/1) ... [2022-07-14 00:05:44,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (1/1) ... [2022-07-14 00:05:44,234 INFO L137 Inliner]: procedures = 139, calls = 575, calls flagged for inlining = 59, calls inlined = 59, statements flattened = 1725 [2022-07-14 00:05:44,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:05:44,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:05:44,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:05:44,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:05:44,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (1/1) ... [2022-07-14 00:05:44,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (1/1) ... [2022-07-14 00:05:44,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (1/1) ... [2022-07-14 00:05:44,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (1/1) ... [2022-07-14 00:05:44,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (1/1) ... [2022-07-14 00:05:44,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (1/1) ... [2022-07-14 00:05:44,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (1/1) ... [2022-07-14 00:05:44,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:05:44,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:05:44,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:05:44,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:05:44,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (1/1) ... [2022-07-14 00:05:44,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:05:44,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:05:44,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 00:05:44,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 00:05:44,517 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-07-14 00:05:44,518 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-07-14 00:05:44,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:05:44,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:05:44,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:05:44,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:05:44,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:05:44,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:05:44,519 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-07-14 00:05:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-07-14 00:05:44,519 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-07-14 00:05:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-07-14 00:05:44,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:05:44,519 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:05:44,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:05:44,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:05:44,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-07-14 00:05:44,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-07-14 00:05:44,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:05:44,520 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_suspend [2022-07-14 00:05:44,520 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_suspend [2022-07-14 00:05:44,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:05:44,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:05:44,521 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_resume [2022-07-14 00:05:44,521 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_resume [2022-07-14 00:05:44,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:05:44,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:05:44,521 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 00:05:44,522 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 00:05:44,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:05:44,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:05:44,522 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:05:44,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:05:44,522 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_tx_fixup [2022-07-14 00:05:44,522 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_tx_fixup [2022-07-14 00:05:44,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:05:44,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-14 00:05:44,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-14 00:05:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2022-07-14 00:05:44,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2022-07-14 00:05:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:05:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 00:05:44,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 00:05:44,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:05:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:05:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:05:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:05:44,525 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_bind [2022-07-14 00:05:44,525 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_bind [2022-07-14 00:05:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_manage_power [2022-07-14 00:05:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_manage_power [2022-07-14 00:05:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-14 00:05:44,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-14 00:05:44,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:05:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-14 00:05:44,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:05:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:05:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-14 00:05:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-14 00:05:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_rx_fixup [2022-07-14 00:05:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_rx_fixup [2022-07-14 00:05:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-14 00:05:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-14 00:05:44,529 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_ncm_unbind [2022-07-14 00:05:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_ncm_unbind [2022-07-14 00:05:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure cdc_mbim_unbind [2022-07-14 00:05:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure cdc_mbim_unbind [2022-07-14 00:05:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:05:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-07-14 00:05:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-07-14 00:05:44,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:05:44,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:05:44,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:05:44,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:05:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:05:44,532 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hdr [2022-07-14 00:05:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hdr [2022-07-14 00:05:44,532 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:05:44,532 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:05:45,023 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:05:45,025 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:05:45,662 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:05:45,875 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-14 00:05:46,124 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:05:46,139 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:05:46,139 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 00:05:46,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:05:46 BoogieIcfgContainer [2022-07-14 00:05:46,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:05:46,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:05:46,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:05:46,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:05:46,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:05:42" (1/3) ... [2022-07-14 00:05:46,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c35a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:05:46, skipping insertion in model container [2022-07-14 00:05:46,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:05:44" (2/3) ... [2022-07-14 00:05:46,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c35a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:05:46, skipping insertion in model container [2022-07-14 00:05:46,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:05:46" (3/3) ... [2022-07-14 00:05:46,149 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--cdc_mbim.ko-entry_point.cil.out.i [2022-07-14 00:05:46,159 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:05:46,160 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:05:46,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:05:46,206 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@35e928e1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@36102155 [2022-07-14 00:05:46,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:05:46,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 523 states, 398 states have (on average 1.407035175879397) internal successors, (560), 412 states have internal predecessors, (560), 94 states have call successors, (94), 31 states have call predecessors, (94), 29 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2022-07-14 00:05:46,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-14 00:05:46,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:46,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:05:46,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:46,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:46,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1589467643, now seen corresponding path program 1 times [2022-07-14 00:05:46,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:46,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017867436] [2022-07-14 00:05:46,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:46,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:46,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:46,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:05:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:46,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:05:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:46,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 00:05:46,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:46,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017867436] [2022-07-14 00:05:46,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017867436] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:46,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:46,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:05:46,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895936087] [2022-07-14 00:05:46,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:46,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:05:46,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:46,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:05:46,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:05:46,835 INFO L87 Difference]: Start difference. First operand has 523 states, 398 states have (on average 1.407035175879397) internal successors, (560), 412 states have internal predecessors, (560), 94 states have call successors, (94), 31 states have call predecessors, (94), 29 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 00:05:48,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:48,583 INFO L93 Difference]: Finished difference Result 1672 states and 2474 transitions. [2022-07-14 00:05:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:05:48,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40 [2022-07-14 00:05:48,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:48,616 INFO L225 Difference]: With dead ends: 1672 [2022-07-14 00:05:48,623 INFO L226 Difference]: Without dead ends: 1132 [2022-07-14 00:05:48,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:05:48,644 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 1145 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:48,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 2187 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-14 00:05:48,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2022-07-14 00:05:48,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 969. [2022-07-14 00:05:48,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 753 states have (on average 1.3957503320053122) internal successors, (1051), 760 states have internal predecessors, (1051), 159 states have call successors, (159), 57 states have call predecessors, (159), 56 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2022-07-14 00:05:48,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1363 transitions. [2022-07-14 00:05:48,766 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1363 transitions. Word has length 40 [2022-07-14 00:05:48,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:48,766 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1363 transitions. [2022-07-14 00:05:48,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-07-14 00:05:48,767 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1363 transitions. [2022-07-14 00:05:48,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 00:05:48,775 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:48,775 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-14 00:05:48,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:05:48,776 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:48,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:48,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1949626109, now seen corresponding path program 1 times [2022-07-14 00:05:48,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:48,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536413629] [2022-07-14 00:05:48,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:48,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:48,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:48,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:05:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:48,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:05:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:48,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:05:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-14 00:05:49,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:49,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536413629] [2022-07-14 00:05:49,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536413629] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:49,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:49,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:05:49,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449174796] [2022-07-14 00:05:49,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:49,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:05:49,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:49,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:05:49,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:05:49,008 INFO L87 Difference]: Start difference. First operand 969 states and 1363 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 00:05:49,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:49,881 INFO L93 Difference]: Finished difference Result 1131 states and 1631 transitions. [2022-07-14 00:05:49,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:05:49,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2022-07-14 00:05:49,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:49,887 INFO L225 Difference]: With dead ends: 1131 [2022-07-14 00:05:49,887 INFO L226 Difference]: Without dead ends: 1128 [2022-07-14 00:05:49,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:05:49,889 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 948 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 261 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:49,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 1470 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [261 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 00:05:49,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2022-07-14 00:05:49,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 968. [2022-07-14 00:05:49,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 753 states have (on average 1.3944223107569722) internal successors, (1050), 759 states have internal predecessors, (1050), 158 states have call successors, (158), 57 states have call predecessors, (158), 56 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2022-07-14 00:05:49,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1361 transitions. [2022-07-14 00:05:49,923 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1361 transitions. Word has length 50 [2022-07-14 00:05:49,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:49,923 INFO L495 AbstractCegarLoop]: Abstraction has 968 states and 1361 transitions. [2022-07-14 00:05:49,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 00:05:49,924 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1361 transitions. [2022-07-14 00:05:49,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-14 00:05:49,926 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:49,926 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-14 00:05:49,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:05:49,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:49,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:49,927 INFO L85 PathProgramCache]: Analyzing trace with hash 308647439, now seen corresponding path program 1 times [2022-07-14 00:05:49,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:49,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618921263] [2022-07-14 00:05:49,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:49,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:50,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:50,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:50,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:05:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:50,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:05:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:50,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:05:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:50,037 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-14 00:05:50,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:50,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618921263] [2022-07-14 00:05:50,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618921263] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:50,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:50,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:05:50,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889579856] [2022-07-14 00:05:50,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:50,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:05:50,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:50,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:05:50,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:05:50,040 INFO L87 Difference]: Start difference. First operand 968 states and 1361 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 00:05:50,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:50,946 INFO L93 Difference]: Finished difference Result 1130 states and 1629 transitions. [2022-07-14 00:05:50,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:05:50,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2022-07-14 00:05:50,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:50,957 INFO L225 Difference]: With dead ends: 1130 [2022-07-14 00:05:50,957 INFO L226 Difference]: Without dead ends: 1127 [2022-07-14 00:05:50,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:05:50,959 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 945 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:50,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 1466 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 00:05:50,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2022-07-14 00:05:50,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 967. [2022-07-14 00:05:50,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 753 states have (on average 1.3930942895086322) internal successors, (1049), 758 states have internal predecessors, (1049), 157 states have call successors, (157), 57 states have call predecessors, (157), 56 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2022-07-14 00:05:51,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1359 transitions. [2022-07-14 00:05:51,003 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1359 transitions. Word has length 51 [2022-07-14 00:05:51,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:51,003 INFO L495 AbstractCegarLoop]: Abstraction has 967 states and 1359 transitions. [2022-07-14 00:05:51,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 00:05:51,004 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1359 transitions. [2022-07-14 00:05:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-14 00:05:51,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:51,006 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-14 00:05:51,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:05:51,007 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:51,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:51,007 INFO L85 PathProgramCache]: Analyzing trace with hash 977921088, now seen corresponding path program 1 times [2022-07-14 00:05:51,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:51,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987688746] [2022-07-14 00:05:51,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:51,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:51,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:05:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:51,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:05:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:51,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:05:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-14 00:05:51,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:51,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987688746] [2022-07-14 00:05:51,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987688746] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:51,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:51,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:05:51,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199005575] [2022-07-14 00:05:51,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:51,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:05:51,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:51,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:05:51,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:05:51,130 INFO L87 Difference]: Start difference. First operand 967 states and 1359 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 00:05:52,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:52,016 INFO L93 Difference]: Finished difference Result 1129 states and 1627 transitions. [2022-07-14 00:05:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:05:52,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2022-07-14 00:05:52,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:52,025 INFO L225 Difference]: With dead ends: 1129 [2022-07-14 00:05:52,026 INFO L226 Difference]: Without dead ends: 1126 [2022-07-14 00:05:52,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:05:52,033 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 942 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:52,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 1462 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 00:05:52,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-07-14 00:05:52,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 966. [2022-07-14 00:05:52,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 753 states have (on average 1.3917662682602923) internal successors, (1048), 757 states have internal predecessors, (1048), 156 states have call successors, (156), 57 states have call predecessors, (156), 56 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2022-07-14 00:05:52,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1357 transitions. [2022-07-14 00:05:52,087 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1357 transitions. Word has length 52 [2022-07-14 00:05:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:52,088 INFO L495 AbstractCegarLoop]: Abstraction has 966 states and 1357 transitions. [2022-07-14 00:05:52,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 00:05:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1357 transitions. [2022-07-14 00:05:52,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 00:05:52,090 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:52,090 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-14 00:05:52,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:05:52,090 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:52,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:52,091 INFO L85 PathProgramCache]: Analyzing trace with hash 250572594, now seen corresponding path program 1 times [2022-07-14 00:05:52,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:52,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938378449] [2022-07-14 00:05:52,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:52,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:52,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:52,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:52,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:52,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:05:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:05:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:52,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:05:52,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:52,245 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-14 00:05:52,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:52,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938378449] [2022-07-14 00:05:52,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938378449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:52,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:52,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:05:52,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440623885] [2022-07-14 00:05:52,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:52,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:05:52,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:52,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:05:52,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:05:52,248 INFO L87 Difference]: Start difference. First operand 966 states and 1357 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 00:05:53,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:53,559 INFO L93 Difference]: Finished difference Result 3187 states and 4578 transitions. [2022-07-14 00:05:53,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:05:53,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2022-07-14 00:05:53,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:53,571 INFO L225 Difference]: With dead ends: 3187 [2022-07-14 00:05:53,571 INFO L226 Difference]: Without dead ends: 2232 [2022-07-14 00:05:53,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:05:53,576 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 1173 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 2165 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:53,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 2165 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 00:05:53,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2232 states. [2022-07-14 00:05:53,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2232 to 1908. [2022-07-14 00:05:53,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1908 states, 1490 states have (on average 1.393959731543624) internal successors, (2077), 1496 states have internal predecessors, (2077), 305 states have call successors, (305), 113 states have call predecessors, (305), 112 states have return successors, (310), 302 states have call predecessors, (310), 302 states have call successors, (310) [2022-07-14 00:05:53,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 2692 transitions. [2022-07-14 00:05:53,661 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 2692 transitions. Word has length 53 [2022-07-14 00:05:53,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:53,661 INFO L495 AbstractCegarLoop]: Abstraction has 1908 states and 2692 transitions. [2022-07-14 00:05:53,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 00:05:53,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 2692 transitions. [2022-07-14 00:05:53,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-07-14 00:05:53,664 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:53,664 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-14 00:05:53,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:05:53,665 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:53,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:53,665 INFO L85 PathProgramCache]: Analyzing trace with hash -822389373, now seen corresponding path program 1 times [2022-07-14 00:05:53,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:53,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717489822] [2022-07-14 00:05:53,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:53,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:53,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:53,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:53,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:05:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:53,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:05:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:53,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:05:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:53,781 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-14 00:05:53,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:53,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717489822] [2022-07-14 00:05:53,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717489822] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:53,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:53,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:05:53,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402089496] [2022-07-14 00:05:53,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:53,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:05:53,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:53,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:05:53,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:05:53,783 INFO L87 Difference]: Start difference. First operand 1908 states and 2692 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 00:05:54,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:54,618 INFO L93 Difference]: Finished difference Result 2230 states and 3223 transitions. [2022-07-14 00:05:54,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:05:54,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-07-14 00:05:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:54,628 INFO L225 Difference]: With dead ends: 2230 [2022-07-14 00:05:54,628 INFO L226 Difference]: Without dead ends: 2218 [2022-07-14 00:05:54,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:05:54,631 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 938 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:54,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 1461 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 00:05:54,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2218 states. [2022-07-14 00:05:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2218 to 1898. [2022-07-14 00:05:54,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1898 states, 1481 states have (on average 1.3936529372045916) internal successors, (2064), 1486 states have internal predecessors, (2064), 304 states have call successors, (304), 113 states have call predecessors, (304), 112 states have return successors, (310), 302 states have call predecessors, (310), 302 states have call successors, (310) [2022-07-14 00:05:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1898 states to 1898 states and 2678 transitions. [2022-07-14 00:05:54,729 INFO L78 Accepts]: Start accepts. Automaton has 1898 states and 2678 transitions. Word has length 54 [2022-07-14 00:05:54,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:54,729 INFO L495 AbstractCegarLoop]: Abstraction has 1898 states and 2678 transitions. [2022-07-14 00:05:54,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-07-14 00:05:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1898 states and 2678 transitions. [2022-07-14 00:05:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-14 00:05:54,732 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:54,732 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:05:54,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 00:05:54,732 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:54,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1986046453, now seen corresponding path program 1 times [2022-07-14 00:05:54,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:54,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30309310] [2022-07-14 00:05:54,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:54,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:54,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:54,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:05:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:54,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:05:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:54,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 00:05:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:54,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 00:05:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 00:05:54,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:54,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30309310] [2022-07-14 00:05:54,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30309310] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:54,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:54,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:05:54,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334317483] [2022-07-14 00:05:54,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:54,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:05:54,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:54,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:05:54,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:05:54,868 INFO L87 Difference]: Start difference. First operand 1898 states and 2678 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 00:05:56,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:56,276 INFO L93 Difference]: Finished difference Result 6142 states and 8755 transitions. [2022-07-14 00:05:56,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:05:56,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2022-07-14 00:05:56,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:56,309 INFO L225 Difference]: With dead ends: 6142 [2022-07-14 00:05:56,309 INFO L226 Difference]: Without dead ends: 4255 [2022-07-14 00:05:56,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:05:56,316 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 1124 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:56,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 2065 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 00:05:56,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4255 states. [2022-07-14 00:05:56,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4255 to 3604. [2022-07-14 00:05:56,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3604 states, 2825 states have (on average 1.390796460176991) internal successors, (3929), 2834 states have internal predecessors, (3929), 555 states have call successors, (555), 224 states have call predecessors, (555), 223 states have return successors, (565), 553 states have call predecessors, (565), 553 states have call successors, (565) [2022-07-14 00:05:56,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 5049 transitions. [2022-07-14 00:05:56,505 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 5049 transitions. Word has length 66 [2022-07-14 00:05:56,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:56,505 INFO L495 AbstractCegarLoop]: Abstraction has 3604 states and 5049 transitions. [2022-07-14 00:05:56,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 00:05:56,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 5049 transitions. [2022-07-14 00:05:56,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-14 00:05:56,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:56,508 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:05:56,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 00:05:56,508 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:56,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:56,509 INFO L85 PathProgramCache]: Analyzing trace with hash -181003579, now seen corresponding path program 1 times [2022-07-14 00:05:56,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:56,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604520105] [2022-07-14 00:05:56,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:56,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:56,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:56,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:56,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:05:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:05:56,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:56,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 00:05:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:56,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 00:05:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:56,640 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 00:05:56,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:56,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604520105] [2022-07-14 00:05:56,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604520105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:56,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:56,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:05:56,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855989991] [2022-07-14 00:05:56,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:56,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:05:56,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:56,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:05:56,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:05:56,644 INFO L87 Difference]: Start difference. First operand 3604 states and 5049 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 00:05:58,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:05:58,614 INFO L93 Difference]: Finished difference Result 10431 states and 14766 transitions. [2022-07-14 00:05:58,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:05:58,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2022-07-14 00:05:58,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:05:58,661 INFO L225 Difference]: With dead ends: 10431 [2022-07-14 00:05:58,662 INFO L226 Difference]: Without dead ends: 6848 [2022-07-14 00:05:58,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:05:58,682 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 962 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:05:58,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 2856 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-14 00:05:58,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2022-07-14 00:05:59,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 5818. [2022-07-14 00:05:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 4560 states have (on average 1.3888157894736841) internal successors, (6333), 4575 states have internal predecessors, (6333), 882 states have call successors, (882), 376 states have call predecessors, (882), 375 states have return successors, (896), 878 states have call predecessors, (896), 880 states have call successors, (896) [2022-07-14 00:05:59,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8111 transitions. [2022-07-14 00:05:59,044 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8111 transitions. Word has length 65 [2022-07-14 00:05:59,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:05:59,046 INFO L495 AbstractCegarLoop]: Abstraction has 5818 states and 8111 transitions. [2022-07-14 00:05:59,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-14 00:05:59,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8111 transitions. [2022-07-14 00:05:59,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-14 00:05:59,062 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:05:59,062 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2022-07-14 00:05:59,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 00:05:59,063 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:05:59,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:05:59,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1535676253, now seen corresponding path program 1 times [2022-07-14 00:05:59,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:05:59,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063045613] [2022-07-14 00:05:59,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:05:59,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:05:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:05:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:05:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:05:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:05:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:05:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:05:59,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 00:05:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:05:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 00:05:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:05:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:05:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:05:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-14 00:05:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:05:59,329 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 00:05:59,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:05:59,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063045613] [2022-07-14 00:05:59,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063045613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:05:59,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:05:59,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:05:59,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516231337] [2022-07-14 00:05:59,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:05:59,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:05:59,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:05:59,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:05:59,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:05:59,331 INFO L87 Difference]: Start difference. First operand 5818 states and 8111 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-14 00:06:01,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:06:01,861 INFO L93 Difference]: Finished difference Result 10230 states and 14590 transitions. [2022-07-14 00:06:01,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 00:06:01,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 122 [2022-07-14 00:06:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:06:01,928 INFO L225 Difference]: With dead ends: 10230 [2022-07-14 00:06:01,928 INFO L226 Difference]: Without dead ends: 10227 [2022-07-14 00:06:01,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:06:01,938 INFO L413 NwaCegarLoop]: 1327 mSDtfsCounter, 2079 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 3876 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:06:01,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 3876 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 1477 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-14 00:06:01,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10227 states. [2022-07-14 00:06:02,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10227 to 8696. [2022-07-14 00:06:02,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8696 states, 6817 states have (on average 1.3902009681678158) internal successors, (9477), 6839 states have internal predecessors, (9477), 1318 states have call successors, (1318), 561 states have call predecessors, (1318), 560 states have return successors, (1364), 1313 states have call predecessors, (1364), 1316 states have call successors, (1364) [2022-07-14 00:06:02,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8696 states to 8696 states and 12159 transitions. [2022-07-14 00:06:02,466 INFO L78 Accepts]: Start accepts. Automaton has 8696 states and 12159 transitions. Word has length 122 [2022-07-14 00:06:02,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:06:02,467 INFO L495 AbstractCegarLoop]: Abstraction has 8696 states and 12159 transitions. [2022-07-14 00:06:02,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-14 00:06:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 8696 states and 12159 transitions. [2022-07-14 00:06:02,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-07-14 00:06:02,477 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:06:02,477 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2022-07-14 00:06:02,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 00:06:02,478 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:06:02,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:06:02,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1504761742, now seen corresponding path program 1 times [2022-07-14 00:06:02,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:06:02,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799242120] [2022-07-14 00:06:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:06:02,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:06:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:06:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:06:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:06:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:06:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:06:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:06:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 00:06:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:06:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 00:06:02,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:06:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:06:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:06:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:06:02,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:02,730 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-07-14 00:06:02,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:06:02,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799242120] [2022-07-14 00:06:02,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799242120] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:06:02,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:06:02,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:06:02,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450870405] [2022-07-14 00:06:02,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:06:02,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:06:02,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:06:02,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:06:02,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:06:02,733 INFO L87 Difference]: Start difference. First operand 8696 states and 12159 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 00:06:04,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:06:04,519 INFO L93 Difference]: Finished difference Result 24686 states and 34978 transitions. [2022-07-14 00:06:04,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:06:04,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 123 [2022-07-14 00:06:04,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:06:04,598 INFO L225 Difference]: With dead ends: 24686 [2022-07-14 00:06:04,598 INFO L226 Difference]: Without dead ends: 16027 [2022-07-14 00:06:04,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:06:04,629 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 1082 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:06:04,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 2411 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 00:06:04,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16027 states. [2022-07-14 00:06:05,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16027 to 13615. [2022-07-14 00:06:05,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13615 states, 10743 states have (on average 1.385832635204319) internal successors, (14888), 10774 states have internal predecessors, (14888), 1996 states have call successors, (1996), 876 states have call predecessors, (1996), 875 states have return successors, (2054), 1988 states have call predecessors, (2054), 1994 states have call successors, (2054) [2022-07-14 00:06:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13615 states to 13615 states and 18938 transitions. [2022-07-14 00:06:05,240 INFO L78 Accepts]: Start accepts. Automaton has 13615 states and 18938 transitions. Word has length 123 [2022-07-14 00:06:05,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:06:05,240 INFO L495 AbstractCegarLoop]: Abstraction has 13615 states and 18938 transitions. [2022-07-14 00:06:05,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-14 00:06:05,241 INFO L276 IsEmpty]: Start isEmpty. Operand 13615 states and 18938 transitions. [2022-07-14 00:06:05,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-14 00:06:05,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:06:05,247 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2022-07-14 00:06:05,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 00:06:05,248 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:06:05,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:06:05,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1949944417, now seen corresponding path program 1 times [2022-07-14 00:06:05,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:06:05,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672393644] [2022-07-14 00:06:05,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:06:05,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:06:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:06:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:06:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:06:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:06:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:06:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:06:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 00:06:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:06:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 00:06:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:06:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:06:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:06:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-14 00:06:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 00:06:05,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:06:05,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672393644] [2022-07-14 00:06:05,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672393644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:06:05,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:06:05,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 00:06:05,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476845661] [2022-07-14 00:06:05,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:06:05,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 00:06:05,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:06:05,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 00:06:05,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:06:05,456 INFO L87 Difference]: Start difference. First operand 13615 states and 18938 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-14 00:06:07,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:06:07,391 INFO L93 Difference]: Finished difference Result 20835 states and 29445 transitions. [2022-07-14 00:06:07,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 00:06:07,392 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 122 [2022-07-14 00:06:07,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:06:07,461 INFO L225 Difference]: With dead ends: 20835 [2022-07-14 00:06:07,461 INFO L226 Difference]: Without dead ends: 16267 [2022-07-14 00:06:07,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:06:07,486 INFO L413 NwaCegarLoop]: 655 mSDtfsCounter, 272 mSDsluCounter, 3588 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:06:07,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 4243 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-14 00:06:07,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16267 states. [2022-07-14 00:06:08,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16267 to 13754. [2022-07-14 00:06:08,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13754 states, 10862 states have (on average 1.380684956729884) internal successors, (14997), 10913 states have internal predecessors, (14997), 1996 states have call successors, (1996), 876 states have call predecessors, (1996), 895 states have return successors, (2094), 1988 states have call predecessors, (2094), 1994 states have call successors, (2094) [2022-07-14 00:06:08,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13754 states to 13754 states and 19087 transitions. [2022-07-14 00:06:08,275 INFO L78 Accepts]: Start accepts. Automaton has 13754 states and 19087 transitions. Word has length 122 [2022-07-14 00:06:08,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:06:08,276 INFO L495 AbstractCegarLoop]: Abstraction has 13754 states and 19087 transitions. [2022-07-14 00:06:08,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 7 states have internal predecessors, (65), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-14 00:06:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 13754 states and 19087 transitions. [2022-07-14 00:06:08,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-14 00:06:08,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:06:08,358 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:06:08,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 00:06:08,358 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:06:08,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:06:08,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1749310071, now seen corresponding path program 1 times [2022-07-14 00:06:08,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:06:08,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582945719] [2022-07-14 00:06:08,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:06:08,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:06:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:06:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:06:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:06:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:06:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:06:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:06:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 00:06:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:06:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 00:06:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:06:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:06:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:06:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:06:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:06:08,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:08,597 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-07-14 00:06:08,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:06:08,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582945719] [2022-07-14 00:06:08,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582945719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:06:08,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:06:08,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:06:08,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212842163] [2022-07-14 00:06:08,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:06:08,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:06:08,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:06:08,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:06:08,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:06:08,600 INFO L87 Difference]: Start difference. First operand 13754 states and 19087 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-14 00:06:10,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:06:10,932 INFO L93 Difference]: Finished difference Result 38432 states and 54071 transitions. [2022-07-14 00:06:10,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:06:10,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 141 [2022-07-14 00:06:10,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:06:11,060 INFO L225 Difference]: With dead ends: 38432 [2022-07-14 00:06:11,061 INFO L226 Difference]: Without dead ends: 24715 [2022-07-14 00:06:11,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:06:11,118 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 1197 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:06:11,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 2340 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-14 00:06:11,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24715 states. [2022-07-14 00:06:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24715 to 21044. [2022-07-14 00:06:12,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21044 states, 16733 states have (on average 1.3772784318412716) internal successors, (23046), 16802 states have internal predecessors, (23046), 2944 states have call successors, (2944), 1335 states have call predecessors, (2944), 1366 states have return successors, (3062), 2936 states have call predecessors, (3062), 2942 states have call successors, (3062) [2022-07-14 00:06:12,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21044 states to 21044 states and 29052 transitions. [2022-07-14 00:06:12,078 INFO L78 Accepts]: Start accepts. Automaton has 21044 states and 29052 transitions. Word has length 141 [2022-07-14 00:06:12,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:06:12,079 INFO L495 AbstractCegarLoop]: Abstraction has 21044 states and 29052 transitions. [2022-07-14 00:06:12,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-14 00:06:12,079 INFO L276 IsEmpty]: Start isEmpty. Operand 21044 states and 29052 transitions. [2022-07-14 00:06:12,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-14 00:06:12,088 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:06:12,088 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 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] [2022-07-14 00:06:12,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 00:06:12,089 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:06:12,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:06:12,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1038448743, now seen corresponding path program 1 times [2022-07-14 00:06:12,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:06:12,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095462502] [2022-07-14 00:06:12,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:06:12,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:06:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:06:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:06:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:06:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:06:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:06:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:06:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 00:06:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:06:12,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 00:06:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:06:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:06:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-14 00:06:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:06:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:06:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:12,258 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 00:06:12,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:06:12,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095462502] [2022-07-14 00:06:12,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095462502] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:06:12,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:06:12,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 00:06:12,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088327523] [2022-07-14 00:06:12,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:06:12,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 00:06:12,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:06:12,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 00:06:12,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:06:12,260 INFO L87 Difference]: Start difference. First operand 21044 states and 29052 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-14 00:06:14,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:06:14,412 INFO L93 Difference]: Finished difference Result 30746 states and 42907 transitions. [2022-07-14 00:06:14,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 00:06:14,413 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 140 [2022-07-14 00:06:14,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:06:14,476 INFO L225 Difference]: With dead ends: 30746 [2022-07-14 00:06:14,476 INFO L226 Difference]: Without dead ends: 16636 [2022-07-14 00:06:14,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:06:14,518 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 309 mSDsluCounter, 2862 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:06:14,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 3511 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-14 00:06:14,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16636 states. [2022-07-14 00:06:15,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16636 to 14099. [2022-07-14 00:06:15,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14099 states, 11225 states have (on average 1.3730066815144766) internal successors, (15412), 11266 states have internal predecessors, (15412), 1966 states have call successors, (1966), 892 states have call predecessors, (1966), 907 states have return successors, (2012), 1960 states have call predecessors, (2012), 1964 states have call successors, (2012) [2022-07-14 00:06:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14099 states to 14099 states and 19390 transitions. [2022-07-14 00:06:15,159 INFO L78 Accepts]: Start accepts. Automaton has 14099 states and 19390 transitions. Word has length 140 [2022-07-14 00:06:15,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:06:15,160 INFO L495 AbstractCegarLoop]: Abstraction has 14099 states and 19390 transitions. [2022-07-14 00:06:15,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-14 00:06:15,160 INFO L276 IsEmpty]: Start isEmpty. Operand 14099 states and 19390 transitions. [2022-07-14 00:06:15,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-14 00:06:15,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:06:15,170 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 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] [2022-07-14 00:06:15,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 00:06:15,170 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:06:15,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:06:15,171 INFO L85 PathProgramCache]: Analyzing trace with hash 935962192, now seen corresponding path program 1 times [2022-07-14 00:06:15,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:06:15,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156723575] [2022-07-14 00:06:15,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:06:15,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:06:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:06:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-14 00:06:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:06:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:06:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:06:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:06:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 00:06:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:06:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 00:06:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:06:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:06:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-14 00:06:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:06:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:06:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,407 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-07-14 00:06:15,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:06:15,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156723575] [2022-07-14 00:06:15,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156723575] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:06:15,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390525123] [2022-07-14 00:06:15,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:06:15,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:06:15,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:06:15,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:06:15,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 00:06:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:06:15,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 00:06:15,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:06:16,065 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-07-14 00:06:16,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:06:16,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390525123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:06:16,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:06:16,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2022-07-14 00:06:16,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617314837] [2022-07-14 00:06:16,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:06:16,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:06:16,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:06:16,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:06:16,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:06:16,068 INFO L87 Difference]: Start difference. First operand 14099 states and 19390 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 00:06:17,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:06:17,455 INFO L93 Difference]: Finished difference Result 14099 states and 19390 transitions. [2022-07-14 00:06:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:06:17,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 144 [2022-07-14 00:06:17,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:06:17,458 INFO L225 Difference]: With dead ends: 14099 [2022-07-14 00:06:17,458 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 00:06:17,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:06:17,473 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 1279 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:06:17,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1197 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-14 00:06:17,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 00:06:17,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 00:06:17,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 00:06:17,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 00:06:17,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 144 [2022-07-14 00:06:17,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:06:17,476 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 00:06:17,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 3 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 00:06:17,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 00:06:17,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 00:06:17,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-14 00:06:17,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-14 00:06:17,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-14 00:06:17,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.