./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.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 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:29:37,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:29:37,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:29:37,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:29:37,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:29:37,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:29:37,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:29:37,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:29:37,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:29:37,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:29:37,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:29:37,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:29:37,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:29:37,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:29:37,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:29:37,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:29:37,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:29:37,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:29:37,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:29:37,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:29:37,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:29:37,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:29:37,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:29:37,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:29:37,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:29:37,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:29:37,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:29:37,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:29:37,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:29:37,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:29:37,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:29:37,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:29:37,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:29:37,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:29:37,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:29:37,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:29:37,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:29:37,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:29:37,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:29:37,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:29:37,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:29:37,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:29:37,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:29:37,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:29:37,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:29:37,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:29:37,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:29:37,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:29:37,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:29:37,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:29:37,310 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:29:37,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:29:37,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:29:37,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:29:37,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:29:37,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:29:37,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:29:37,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:29:37,312 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:29:37,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:29:37,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:29:37,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:29:37,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:29:37,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:29:37,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:29:37,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:29:37,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:29:37,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:29:37,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:29:37,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:29:37,314 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:29:37,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:29:37,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2021-12-28 04:29:37,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:29:37,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:29:37,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:29:37,585 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:29:37,586 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:29:37,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2021-12-28 04:29:37,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97097c6ce/ded768e924f84aa0bacfd313316b9481/FLAG1d194bc91 [2021-12-28 04:29:38,292 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:29:38,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2021-12-28 04:29:38,329 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97097c6ce/ded768e924f84aa0bacfd313316b9481/FLAG1d194bc91 [2021-12-28 04:29:38,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97097c6ce/ded768e924f84aa0bacfd313316b9481 [2021-12-28 04:29:38,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:29:38,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:29:38,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:29:38,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:29:38,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:29:38,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:29:38" (1/1) ... [2021-12-28 04:29:38,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b2633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:38, skipping insertion in model container [2021-12-28 04:29:38,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:29:38" (1/1) ... [2021-12-28 04:29:38,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:29:38,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:29:39,578 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2021-12-28 04:29:39,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:29:39,651 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:29:39,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2021-12-28 04:29:39,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:29:40,039 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:29:40,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40 WrapperNode [2021-12-28 04:29:40,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:29:40,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:29:40,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:29:40,043 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:29:40,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (1/1) ... [2021-12-28 04:29:40,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (1/1) ... [2021-12-28 04:29:40,276 INFO L137 Inliner]: procedures = 225, calls = 1448, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 3651 [2021-12-28 04:29:40,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:29:40,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:29:40,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:29:40,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:29:40,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (1/1) ... [2021-12-28 04:29:40,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (1/1) ... [2021-12-28 04:29:40,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (1/1) ... [2021-12-28 04:29:40,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (1/1) ... [2021-12-28 04:29:40,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (1/1) ... [2021-12-28 04:29:40,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (1/1) ... [2021-12-28 04:29:40,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (1/1) ... [2021-12-28 04:29:40,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:29:40,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:29:40,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:29:40,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:29:40,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (1/1) ... [2021-12-28 04:29:40,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:29:40,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:29:40,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 04:29:40,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 04:29:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2021-12-28 04:29:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2021-12-28 04:29:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:29:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:29:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:29:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:29:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:29:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:29:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-28 04:29:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-28 04:29:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:29:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:29:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:29:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:29:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:29:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:29:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-28 04:29:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-28 04:29:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-28 04:29:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-28 04:29:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:29:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:29:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:29:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:29:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-12-28 04:29:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-12-28 04:29:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2021-12-28 04:29:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2021-12-28 04:29:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2021-12-28 04:29:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2021-12-28 04:29:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-28 04:29:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-28 04:29:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:29:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-28 04:29:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2021-12-28 04:29:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2021-12-28 04:29:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-28 04:29:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-28 04:29:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:29:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2021-12-28 04:29:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2021-12-28 04:29:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 04:29:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 04:29:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-12-28 04:29:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-12-28 04:29:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:29:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:29:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:29:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:29:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-28 04:29:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-28 04:29:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:29:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-28 04:29:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-28 04:29:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:29:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-28 04:29:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-28 04:29:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-28 04:29:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-28 04:29:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-28 04:29:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-28 04:29:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 04:29:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 04:29:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-28 04:29:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-28 04:29:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 04:29:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 04:29:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:29:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:29:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-28 04:29:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-28 04:29:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2021-12-28 04:29:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2021-12-28 04:29:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2021-12-28 04:29:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2021-12-28 04:29:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:29:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 04:29:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 04:29:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:29:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2021-12-28 04:29:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2021-12-28 04:29:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-28 04:29:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-28 04:29:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:29:40,579 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 04:29:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 04:29:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 04:29:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 04:29:40,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:29:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:29:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2021-12-28 04:29:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2021-12-28 04:29:40,581 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2021-12-28 04:29:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2021-12-28 04:29:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:29:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:29:40,582 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2021-12-28 04:29:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2021-12-28 04:29:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-28 04:29:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-28 04:29:40,583 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-28 04:29:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-28 04:29:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2021-12-28 04:29:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2021-12-28 04:29:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:29:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-28 04:29:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-28 04:29:40,584 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2021-12-28 04:29:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2021-12-28 04:29:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-12-28 04:29:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-12-28 04:29:40,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:29:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:29:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2021-12-28 04:29:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2021-12-28 04:29:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:29:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:29:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2021-12-28 04:29:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2021-12-28 04:29:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2021-12-28 04:29:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2021-12-28 04:29:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2021-12-28 04:29:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2021-12-28 04:29:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:29:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2021-12-28 04:29:40,609 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2021-12-28 04:29:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:29:40,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:29:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:29:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 04:29:40,609 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 04:29:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:29:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:29:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-28 04:29:40,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-28 04:29:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2021-12-28 04:29:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2021-12-28 04:29:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2021-12-28 04:29:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2021-12-28 04:29:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2021-12-28 04:29:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2021-12-28 04:29:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-28 04:29:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-28 04:29:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-28 04:29:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-28 04:29:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2021-12-28 04:29:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2021-12-28 04:29:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-28 04:29:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-28 04:29:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:29:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-28 04:29:40,610 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-28 04:29:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:29:40,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:29:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2021-12-28 04:29:40,611 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2021-12-28 04:29:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-12-28 04:29:40,611 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-12-28 04:29:41,152 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:29:41,155 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:29:41,504 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:29:42,765 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-28 04:29:42,880 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == ~bitwiseAnd(~tmp___4~7#1, 2096896) % 18446744073709551616; [2021-12-28 04:29:42,880 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == ~bitwiseAnd(~tmp___4~7#1, 2096896) % 18446744073709551616); [2021-12-28 04:29:42,880 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret657#1 && #t~ret657#1 <= 9223372036854775807;havoc #t~ret657#1; [2021-12-28 04:29:42,881 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret657#1 := schedule_timeout_interruptible(1); srcloc: null [2021-12-28 04:29:42,881 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2021-12-28 04:29:42,881 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2021-12-28 04:29:42,943 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:29:43,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:29:43,006 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 04:29:43,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:29:43 BoogieIcfgContainer [2021-12-28 04:29:43,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:29:43,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:29:43,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:29:43,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:29:43,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:29:38" (1/3) ... [2021-12-28 04:29:43,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf39b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:29:43, skipping insertion in model container [2021-12-28 04:29:43,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:29:40" (2/3) ... [2021-12-28 04:29:43,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf39b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:29:43, skipping insertion in model container [2021-12-28 04:29:43,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:29:43" (3/3) ... [2021-12-28 04:29:43,016 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2021-12-28 04:29:43,020 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:29:43,020 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:29:43,085 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:29:43,091 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 04:29:43,092 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:29:43,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 1632 states, 1028 states have (on average 1.3511673151750974) internal successors, (1389), 1082 states have internal predecessors, (1389), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) [2021-12-28 04:29:43,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-28 04:29:43,160 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:29:43,161 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:29:43,162 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:29:43,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:29:43,167 INFO L85 PathProgramCache]: Analyzing trace with hash 740841460, now seen corresponding path program 1 times [2021-12-28 04:29:43,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:29:43,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560291634] [2021-12-28 04:29:43,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:29:43,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:29:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:29:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:29:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:29:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:29:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:29:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:29:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:29:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 04:29:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 04:29:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 04:29:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:29:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-28 04:29:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 04:29:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:43,825 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-28 04:29:43,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:29:43,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560291634] [2021-12-28 04:29:43,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560291634] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:29:43,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:29:43,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:29:43,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925182966] [2021-12-28 04:29:43,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:29:43,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:29:43,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:29:43,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:29:43,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:29:43,857 INFO L87 Difference]: Start difference. First operand has 1632 states, 1028 states have (on average 1.3511673151750974) internal successors, (1389), 1082 states have internal predecessors, (1389), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:29:47,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:29:47,855 INFO L93 Difference]: Finished difference Result 3398 states and 5191 transitions. [2021-12-28 04:29:47,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:29:47,858 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2021-12-28 04:29:47,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:29:47,901 INFO L225 Difference]: With dead ends: 3398 [2021-12-28 04:29:47,904 INFO L226 Difference]: Without dead ends: 1751 [2021-12-28 04:29:47,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:29:47,925 INFO L933 BasicCegarLoop]: 2022 mSDtfsCounter, 2012 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 2592 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 3977 SdHoareTripleChecker+Invalid, 4337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2592 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-12-28 04:29:47,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2053 Valid, 3977 Invalid, 4337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2592 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-12-28 04:29:47,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2021-12-28 04:29:48,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1606. [2021-12-28 04:29:48,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1011 states have (on average 1.3422354104846685) internal successors, (1357), 1055 states have internal predecessors, (1357), 526 states have call successors, (526), 69 states have call predecessors, (526), 68 states have return successors, (525), 509 states have call predecessors, (525), 525 states have call successors, (525) [2021-12-28 04:29:48,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2408 transitions. [2021-12-28 04:29:48,137 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2408 transitions. Word has length 167 [2021-12-28 04:29:48,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:29:48,137 INFO L470 AbstractCegarLoop]: Abstraction has 1606 states and 2408 transitions. [2021-12-28 04:29:48,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-28 04:29:48,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2408 transitions. [2021-12-28 04:29:48,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-28 04:29:48,150 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:29:48,151 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:29:48,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:29:48,151 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:29:48,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:29:48,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1077778858, now seen corresponding path program 1 times [2021-12-28 04:29:48,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:29:48,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51583260] [2021-12-28 04:29:48,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:29:48,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:29:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:29:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:29:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:29:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:29:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:29:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:29:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:29:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-28 04:29:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 04:29:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-28 04:29:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-12-28 04:29:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-28 04:29:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-28 04:29:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:48,640 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-28 04:29:48,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:29:48,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51583260] [2021-12-28 04:29:48,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51583260] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:29:48,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:29:48,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:29:48,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630426689] [2021-12-28 04:29:48,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:29:48,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:29:48,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:29:48,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:29:48,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:29:48,643 INFO L87 Difference]: Start difference. First operand 1606 states and 2408 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:29:56,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:29:56,990 INFO L93 Difference]: Finished difference Result 5068 states and 7677 transitions. [2021-12-28 04:29:56,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:29:56,991 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 167 [2021-12-28 04:29:56,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:29:57,012 INFO L225 Difference]: With dead ends: 5068 [2021-12-28 04:29:57,012 INFO L226 Difference]: Without dead ends: 3484 [2021-12-28 04:29:57,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-28 04:29:57,025 INFO L933 BasicCegarLoop]: 2520 mSDtfsCounter, 6255 mSDsluCounter, 4749 mSDsCounter, 0 mSdLazyCounter, 7969 mSolverCounterSat, 7104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6506 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 15073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7104 IncrementalHoareTripleChecker+Valid, 7969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-12-28 04:29:57,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6506 Valid, 7269 Invalid, 15073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7104 Valid, 7969 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2021-12-28 04:29:57,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2021-12-28 04:29:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3184. [2021-12-28 04:29:57,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 2004 states have (on average 1.342814371257485) internal successors, (2691), 2096 states have internal predecessors, (2691), 1043 states have call successors, (1043), 137 states have call predecessors, (1043), 136 states have return successors, (1046), 1006 states have call predecessors, (1046), 1042 states have call successors, (1046) [2021-12-28 04:29:57,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4780 transitions. [2021-12-28 04:29:57,237 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4780 transitions. Word has length 167 [2021-12-28 04:29:57,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:29:57,237 INFO L470 AbstractCegarLoop]: Abstraction has 3184 states and 4780 transitions. [2021-12-28 04:29:57,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:29:57,238 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4780 transitions. [2021-12-28 04:29:57,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-28 04:29:57,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:29:57,245 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:29:57,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:29:57,246 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:29:57,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:29:57,246 INFO L85 PathProgramCache]: Analyzing trace with hash -198068825, now seen corresponding path program 1 times [2021-12-28 04:29:57,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:29:57,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215279022] [2021-12-28 04:29:57,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:29:57,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:29:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:29:57,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:29:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:29:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:29:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:29:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:29:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:29:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:29:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:29:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 04:29:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-28 04:29:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-28 04:29:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-28 04:29:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-28 04:29:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 04:29:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:29:57,527 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-28 04:29:57,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:29:57,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215279022] [2021-12-28 04:29:57,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215279022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:29:57,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:29:57,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:29:57,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225671957] [2021-12-28 04:29:57,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:29:57,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:29:57,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:29:57,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:29:57,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:29:57,529 INFO L87 Difference]: Start difference. First operand 3184 states and 4780 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:30:05,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:30:05,641 INFO L93 Difference]: Finished difference Result 10100 states and 15305 transitions. [2021-12-28 04:30:05,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:30:05,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2021-12-28 04:30:05,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:30:05,703 INFO L225 Difference]: With dead ends: 10100 [2021-12-28 04:30:05,703 INFO L226 Difference]: Without dead ends: 6938 [2021-12-28 04:30:05,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-28 04:30:05,727 INFO L933 BasicCegarLoop]: 2425 mSDtfsCounter, 5332 mSDsluCounter, 5285 mSDsCounter, 0 mSdLazyCounter, 8677 mSolverCounterSat, 5565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5584 SdHoareTripleChecker+Valid, 7710 SdHoareTripleChecker+Invalid, 14242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5565 IncrementalHoareTripleChecker+Valid, 8677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-12-28 04:30:05,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5584 Valid, 7710 Invalid, 14242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5565 Valid, 8677 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-12-28 04:30:05,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6938 states. [2021-12-28 04:30:06,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6938 to 6346. [2021-12-28 04:30:06,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6346 states, 3997 states have (on average 1.3427570678008507) internal successors, (5367), 4180 states have internal predecessors, (5367), 2076 states have call successors, (2076), 273 states have call predecessors, (2076), 272 states have return successors, (2089), 2004 states have call predecessors, (2089), 2075 states have call successors, (2089) [2021-12-28 04:30:06,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 9532 transitions. [2021-12-28 04:30:06,066 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 9532 transitions. Word has length 169 [2021-12-28 04:30:06,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:30:06,067 INFO L470 AbstractCegarLoop]: Abstraction has 6346 states and 9532 transitions. [2021-12-28 04:30:06,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:30:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 9532 transitions. [2021-12-28 04:30:06,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-28 04:30:06,073 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:30:06,074 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:30:06,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:30:06,074 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:30:06,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:30:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2105470557, now seen corresponding path program 1 times [2021-12-28 04:30:06,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:30:06,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28130198] [2021-12-28 04:30:06,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:06,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:30:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:30:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:30:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:30:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:30:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:30:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:30:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:30:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 04:30:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-28 04:30:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-28 04:30:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:30:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:30:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:30:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-28 04:30:06,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:30:06,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28130198] [2021-12-28 04:30:06,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28130198] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:30:06,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:30:06,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:30:06,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799913368] [2021-12-28 04:30:06,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:30:06,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:30:06,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:30:06,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:30:06,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:30:06,404 INFO L87 Difference]: Start difference. First operand 6346 states and 9532 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:30:13,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:30:13,822 INFO L93 Difference]: Finished difference Result 20174 states and 30570 transitions. [2021-12-28 04:30:13,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:30:13,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 168 [2021-12-28 04:30:13,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:30:13,908 INFO L225 Difference]: With dead ends: 20174 [2021-12-28 04:30:13,909 INFO L226 Difference]: Without dead ends: 13850 [2021-12-28 04:30:13,941 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-28 04:30:13,942 INFO L933 BasicCegarLoop]: 2429 mSDtfsCounter, 6519 mSDsluCounter, 4640 mSDsCounter, 0 mSdLazyCounter, 7910 mSolverCounterSat, 7185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6771 SdHoareTripleChecker+Valid, 7069 SdHoareTripleChecker+Invalid, 15095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7185 IncrementalHoareTripleChecker+Valid, 7910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-12-28 04:30:13,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6771 Valid, 7069 Invalid, 15095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7185 Valid, 7910 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2021-12-28 04:30:13,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13850 states. [2021-12-28 04:30:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13850 to 12672. [2021-12-28 04:30:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12672 states, 7985 states have (on average 1.3421415153412648) internal successors, (10717), 8349 states have internal predecessors, (10717), 4141 states have call successors, (4141), 546 states have call predecessors, (4141), 545 states have return successors, (4178), 4000 states have call predecessors, (4178), 4140 states have call successors, (4178) [2021-12-28 04:30:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12672 states to 12672 states and 19036 transitions. [2021-12-28 04:30:14,714 INFO L78 Accepts]: Start accepts. Automaton has 12672 states and 19036 transitions. Word has length 168 [2021-12-28 04:30:14,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:30:14,715 INFO L470 AbstractCegarLoop]: Abstraction has 12672 states and 19036 transitions. [2021-12-28 04:30:14,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:30:14,716 INFO L276 IsEmpty]: Start isEmpty. Operand 12672 states and 19036 transitions. [2021-12-28 04:30:14,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-12-28 04:30:14,724 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:30:14,724 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:30:14,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:30:14,725 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:30:14,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:30:14,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1604410682, now seen corresponding path program 1 times [2021-12-28 04:30:14,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:30:14,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674477146] [2021-12-28 04:30:14,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:14,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:30:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:30:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:30:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:30:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:30:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:30:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:30:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:14,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:15,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:30:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:15,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:15,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 04:30:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:15,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:30:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:15,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 04:30:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:15,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 04:30:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:15,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 04:30:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:15,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-28 04:30:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2021-12-28 04:30:15,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:30:15,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674477146] [2021-12-28 04:30:15,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674477146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:30:15,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:30:15,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:30:15,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512672306] [2021-12-28 04:30:15,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:30:15,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:30:15,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:30:15,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:30:15,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:30:15,053 INFO L87 Difference]: Start difference. First operand 12672 states and 19036 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:30:23,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:30:23,865 INFO L93 Difference]: Finished difference Result 40084 states and 60722 transitions. [2021-12-28 04:30:23,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 04:30:23,865 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 170 [2021-12-28 04:30:23,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:30:23,977 INFO L225 Difference]: With dead ends: 40084 [2021-12-28 04:30:23,978 INFO L226 Difference]: Without dead ends: 27434 [2021-12-28 04:30:24,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-12-28 04:30:24,027 INFO L933 BasicCegarLoop]: 2208 mSDtfsCounter, 5670 mSDsluCounter, 5063 mSDsCounter, 0 mSdLazyCounter, 8207 mSolverCounterSat, 5894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5921 SdHoareTripleChecker+Valid, 7271 SdHoareTripleChecker+Invalid, 14101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5894 IncrementalHoareTripleChecker+Valid, 8207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:30:24,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5921 Valid, 7271 Invalid, 14101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5894 Valid, 8207 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-12-28 04:30:24,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27434 states. [2021-12-28 04:30:25,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27434 to 25165. [2021-12-28 04:30:25,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25165 states, 15854 states have (on average 1.341932635297086) internal successors, (21275), 16572 states have internal predecessors, (21275), 8224 states have call successors, (8224), 1087 states have call predecessors, (8224), 1086 states have return successors, (8317), 7947 states have call predecessors, (8317), 8223 states have call successors, (8317) [2021-12-28 04:30:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25165 states to 25165 states and 37816 transitions. [2021-12-28 04:30:25,316 INFO L78 Accepts]: Start accepts. Automaton has 25165 states and 37816 transitions. Word has length 170 [2021-12-28 04:30:25,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:30:25,317 INFO L470 AbstractCegarLoop]: Abstraction has 25165 states and 37816 transitions. [2021-12-28 04:30:25,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-28 04:30:25,318 INFO L276 IsEmpty]: Start isEmpty. Operand 25165 states and 37816 transitions. [2021-12-28 04:30:25,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-28 04:30:25,325 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:30:25,325 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:30:25,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:30:25,326 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:30:25,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:30:25,326 INFO L85 PathProgramCache]: Analyzing trace with hash 482038512, now seen corresponding path program 1 times [2021-12-28 04:30:25,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:30:25,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336829304] [2021-12-28 04:30:25,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:25,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:30:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:30:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:30:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:30:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:30:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:25,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:30:25,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:30:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 04:30:25,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-28 04:30:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:30:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 04:30:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-28 04:30:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-28 04:30:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-28 04:30:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 04:30:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 04:30:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-28 04:30:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:25,801 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2021-12-28 04:30:25,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:30:25,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336829304] [2021-12-28 04:30:25,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336829304] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 04:30:25,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474286903] [2021-12-28 04:30:25,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:25,802 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 04:30:25,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:30:25,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 04:30:25,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 04:30:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:26,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 2196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-28 04:30:26,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 04:30:26,682 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-12-28 04:30:26,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 04:30:26,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474286903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:30:26,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 04:30:26,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2021-12-28 04:30:26,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828400669] [2021-12-28 04:30:26,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:30:26,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 04:30:26,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:30:26,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 04:30:26,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-28 04:30:26,685 INFO L87 Difference]: Start difference. First operand 25165 states and 37816 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-28 04:30:27,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:30:27,661 INFO L93 Difference]: Finished difference Result 50473 states and 75875 transitions. [2021-12-28 04:30:27,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 04:30:27,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 180 [2021-12-28 04:30:27,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:30:27,775 INFO L225 Difference]: With dead ends: 50473 [2021-12-28 04:30:27,775 INFO L226 Difference]: Without dead ends: 25330 [2021-12-28 04:30:27,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-12-28 04:30:27,861 INFO L933 BasicCegarLoop]: 2409 mSDtfsCounter, 9 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4808 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:30:27,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4808 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 04:30:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25330 states. [2021-12-28 04:30:29,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25330 to 25180. [2021-12-28 04:30:29,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25180 states, 15869 states have (on average 1.3416094271850778) internal successors, (21290), 16587 states have internal predecessors, (21290), 8224 states have call successors, (8224), 1087 states have call predecessors, (8224), 1086 states have return successors, (8317), 7947 states have call predecessors, (8317), 8223 states have call successors, (8317) [2021-12-28 04:30:29,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25180 states to 25180 states and 37831 transitions. [2021-12-28 04:30:29,155 INFO L78 Accepts]: Start accepts. Automaton has 25180 states and 37831 transitions. Word has length 180 [2021-12-28 04:30:29,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:30:29,156 INFO L470 AbstractCegarLoop]: Abstraction has 25180 states and 37831 transitions. [2021-12-28 04:30:29,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-28 04:30:29,156 INFO L276 IsEmpty]: Start isEmpty. Operand 25180 states and 37831 transitions. [2021-12-28 04:30:29,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-28 04:30:29,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:30:29,165 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:30:29,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 04:30:29,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-28 04:30:29,403 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:30:29,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:30:29,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2079713895, now seen corresponding path program 1 times [2021-12-28 04:30:29,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:30:29,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788027344] [2021-12-28 04:30:29,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:29,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:30:29,460 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 04:30:29,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628288241] [2021-12-28 04:30:29,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:29,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 04:30:29,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:30:29,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 04:30:29,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 04:30:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:30,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 2226 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 04:30:30,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 04:30:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-12-28 04:30:30,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 04:30:30,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:30:30,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788027344] [2021-12-28 04:30:30,475 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-28 04:30:30,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628288241] [2021-12-28 04:30:30,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628288241] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:30:30,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:30:30,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:30:30,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347869167] [2021-12-28 04:30:30,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:30:30,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:30:30,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:30:30,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:30:30,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:30:30,477 INFO L87 Difference]: Start difference. First operand 25180 states and 37831 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 04:30:32,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:30:32,005 INFO L93 Difference]: Finished difference Result 63018 states and 94683 transitions. [2021-12-28 04:30:32,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 04:30:32,006 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 184 [2021-12-28 04:30:32,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:30:32,310 INFO L225 Difference]: With dead ends: 63018 [2021-12-28 04:30:32,310 INFO L226 Difference]: Without dead ends: 37860 [2021-12-28 04:30:32,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-12-28 04:30:32,390 INFO L933 BasicCegarLoop]: 3465 mSDtfsCounter, 2428 mSDsluCounter, 16236 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 19701 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:30:32,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2432 Valid, 19701 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 04:30:32,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37860 states. [2021-12-28 04:30:34,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37860 to 37711. [2021-12-28 04:30:34,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37711 states, 23776 states have (on average 1.3424461641991925) internal successors, (31918), 24860 states have internal predecessors, (31918), 12303 states have call successors, (12303), 1624 states have call predecessors, (12303), 1631 states have return successors, (12486), 11886 states have call predecessors, (12486), 12302 states have call successors, (12486) [2021-12-28 04:30:34,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37711 states to 37711 states and 56707 transitions. [2021-12-28 04:30:34,442 INFO L78 Accepts]: Start accepts. Automaton has 37711 states and 56707 transitions. Word has length 184 [2021-12-28 04:30:34,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:30:34,443 INFO L470 AbstractCegarLoop]: Abstraction has 37711 states and 56707 transitions. [2021-12-28 04:30:34,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 04:30:34,443 INFO L276 IsEmpty]: Start isEmpty. Operand 37711 states and 56707 transitions. [2021-12-28 04:30:34,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-28 04:30:34,453 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:30:34,454 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:30:34,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 04:30:34,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-28 04:30:34,667 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:30:34,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:30:34,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1028835409, now seen corresponding path program 1 times [2021-12-28 04:30:34,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:30:34,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513738105] [2021-12-28 04:30:34,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:34,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:30:34,735 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-28 04:30:34,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025518469] [2021-12-28 04:30:34,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:30:34,736 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 04:30:34,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:30:34,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 04:30:34,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 04:30:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:30:35,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 04:30:35,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 04:30:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-12-28 04:30:35,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 04:30:35,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:30:35,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513738105] [2021-12-28 04:30:35,561 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-28 04:30:35,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025518469] [2021-12-28 04:30:35,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025518469] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:30:35,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:30:35,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:30:35,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545931259] [2021-12-28 04:30:35,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:30:35,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:30:35,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:30:35,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:30:35,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:30:35,575 INFO L87 Difference]: Start difference. First operand 37711 states and 56707 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-28 04:30:37,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:30:37,885 INFO L93 Difference]: Finished difference Result 88133 states and 132481 transitions. [2021-12-28 04:30:37,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 04:30:37,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 185 [2021-12-28 04:30:37,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:30:38,318 INFO L225 Difference]: With dead ends: 88133 [2021-12-28 04:30:38,318 INFO L226 Difference]: Without dead ends: 50444 [2021-12-28 04:30:38,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-12-28 04:30:38,457 INFO L933 BasicCegarLoop]: 3752 mSDtfsCounter, 2428 mSDsluCounter, 17372 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2432 SdHoareTripleChecker+Valid, 21124 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:30:38,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2432 Valid, 21124 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 04:30:38,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50444 states.