./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--wireless--prism54--prism54.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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--wireless--prism54--prism54.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 039eab12e50993f4fa37adc6de2fecb3561458fa83d70d097739d1ded7d4af34 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 05:40:54,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 05:40:54,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 05:40:54,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 05:40:54,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 05:40:54,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 05:40:54,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 05:40:54,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 05:40:54,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 05:40:54,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 05:40:54,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 05:40:54,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 05:40:54,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 05:40:54,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 05:40:54,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 05:40:54,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 05:40:54,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 05:40:54,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 05:40:54,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 05:40:54,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 05:40:54,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 05:40:54,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 05:40:54,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 05:40:54,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 05:40:54,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 05:40:54,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 05:40:54,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 05:40:54,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 05:40:54,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 05:40:54,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 05:40:54,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 05:40:54,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 05:40:54,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 05:40:54,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 05:40:54,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 05:40:54,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 05:40:54,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 05:40:54,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 05:40:54,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 05:40:54,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 05:40:54,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 05:40:54,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 05:40:54,379 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 05:40:54,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 05:40:54,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 05:40:54,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 05:40:54,381 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 05:40:54,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 05:40:54,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 05:40:54,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 05:40:54,381 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 05:40:54,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 05:40:54,382 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 05:40:54,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 05:40:54,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 05:40:54,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 05:40:54,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 05:40:54,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 05:40:54,382 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 05:40:54,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 05:40:54,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 05:40:54,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 05:40:54,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 05:40:54,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:40:54,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 05:40:54,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 05:40:54,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 05:40:54,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 05:40:54,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 05:40:54,390 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 05:40:54,390 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 05:40:54,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 05:40:54,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 05:40:54,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 039eab12e50993f4fa37adc6de2fecb3561458fa83d70d097739d1ded7d4af34 [2021-11-17 05:40:54,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 05:40:54,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 05:40:54,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 05:40:54,614 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 05:40:54,629 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 05:40:54,630 INFO L432 ainManager$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--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-17 05:40:54,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e19e97702/fa173ef456a6402cb8a2a02bf7a1afb8/FLAG33efbb92b [2021-11-17 05:40:55,468 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 05:40:55,469 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--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-17 05:40:55,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e19e97702/fa173ef456a6402cb8a2a02bf7a1afb8/FLAG33efbb92b [2021-11-17 05:40:55,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e19e97702/fa173ef456a6402cb8a2a02bf7a1afb8 [2021-11-17 05:40:55,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 05:40:55,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 05:40:55,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 05:40:55,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 05:40:55,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 05:40:55,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:40:55" (1/1) ... [2021-11-17 05:40:55,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20835cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:55, skipping insertion in model container [2021-11-17 05:40:55,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:40:55" (1/1) ... [2021-11-17 05:40:55,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 05:40:55,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 05:40:59,272 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--wireless--prism54--prism54.ko-entry_point.cil.out.i[485718,485731] [2021-11-17 05:40:59,335 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:40:59,408 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 05:40:59,785 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--wireless--prism54--prism54.ko-entry_point.cil.out.i[485718,485731] [2021-11-17 05:40:59,790 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:40:59,934 INFO L208 MainTranslator]: Completed translation [2021-11-17 05:40:59,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59 WrapperNode [2021-11-17 05:40:59,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 05:40:59,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 05:40:59,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 05:40:59,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 05:40:59,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (1/1) ... [2021-11-17 05:41:00,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (1/1) ... [2021-11-17 05:41:00,277 INFO L137 Inliner]: procedures = 526, calls = 6245, calls flagged for inlining = 183, calls inlined = 161, statements flattened = 7538 [2021-11-17 05:41:00,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 05:41:00,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 05:41:00,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 05:41:00,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 05:41:00,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (1/1) ... [2021-11-17 05:41:00,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (1/1) ... [2021-11-17 05:41:00,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (1/1) ... [2021-11-17 05:41:00,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (1/1) ... [2021-11-17 05:41:00,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (1/1) ... [2021-11-17 05:41:00,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (1/1) ... [2021-11-17 05:41:00,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (1/1) ... [2021-11-17 05:41:00,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 05:41:00,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 05:41:00,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 05:41:00,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 05:41:00,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (1/1) ... [2021-11-17 05:41:00,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:41:00,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:41:00,714 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) [2021-11-17 05:41:00,720 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 [2021-11-17 05:41:00,742 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2021-11-17 05:41:00,743 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2021-11-17 05:41:00,743 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2021-11-17 05:41:00,743 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2021-11-17 05:41:00,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_5 [2021-11-17 05:41:00,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_5 [2021-11-17 05:41:00,743 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-17 05:41:00,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 05:41:00,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 05:41:00,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 05:41:00,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 05:41:00,744 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2021-11-17 05:41:00,744 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2021-11-17 05:41:00,744 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 05:41:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 05:41:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-17 05:41:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-17 05:41:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 05:41:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 05:41:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2021-11-17 05:41:00,745 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2021-11-17 05:41:00,745 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-11-17 05:41:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-11-17 05:41:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 05:41:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 05:41:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-17 05:41:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-17 05:41:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2021-11-17 05:41:00,746 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2021-11-17 05:41:00,746 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2021-11-17 05:41:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2021-11-17 05:41:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2021-11-17 05:41:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2021-11-17 05:41:00,747 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-17 05:41:00,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-17 05:41:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 05:41:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 05:41:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 05:41:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 05:41:00,748 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2021-11-17 05:41:00,748 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2021-11-17 05:41:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 05:41:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 05:41:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 05:41:00,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 05:41:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 05:41:00,749 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-17 05:41:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-17 05:41:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 05:41:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 05:41:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-17 05:41:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-17 05:41:00,750 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2021-11-17 05:41:00,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2021-11-17 05:41:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 05:41:00,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 05:41:00,751 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 05:41:00,752 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 05:41:00,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 05:41:00,752 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2021-11-17 05:41:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2021-11-17 05:41:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 05:41:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 05:41:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-11-17 05:41:00,753 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-11-17 05:41:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 05:41:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 05:41:00,753 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 05:41:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 05:41:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 05:41:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 05:41:00,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 05:41:00,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 05:41:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_set_mac_address [2021-11-17 05:41:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_set_mac_address [2021-11-17 05:41:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2021-11-17 05:41:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2021-11-17 05:41:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 05:41:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 05:41:00,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 05:41:00,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 05:41:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 05:41:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-17 05:41:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 05:41:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 05:41:00,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 05:41:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 05:41:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 05:41:00,756 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 05:41:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 05:41:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-17 05:41:00,757 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-17 05:41:00,757 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 05:41:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 05:41:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-11-17 05:41:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-11-17 05:41:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-17 05:41:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-17 05:41:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 05:41:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 05:41:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2021-11-17 05:41:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2021-11-17 05:41:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2021-11-17 05:41:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2021-11-17 05:41:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-17 05:41:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-17 05:41:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 05:41:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 05:41:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-17 05:41:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-17 05:41:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-17 05:41:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-17 05:41:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2021-11-17 05:41:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2021-11-17 05:41:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 05:41:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 05:41:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 05:41:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 05:41:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 05:41:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 05:41:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-17 05:41:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-17 05:41:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 05:41:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 05:41:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-17 05:41:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-17 05:41:00,767 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2021-11-17 05:41:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2021-11-17 05:41:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-17 05:41:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-17 05:41:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 05:41:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 05:41:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 05:41:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 05:41:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 05:41:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 05:41:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 05:41:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 05:41:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 05:41:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 05:41:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 05:41:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 05:41:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-17 05:41:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-17 05:41:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 05:41:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 05:41:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 05:41:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 05:41:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 05:41:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 05:41:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 05:41:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2021-11-17 05:41:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2021-11-17 05:41:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 05:41:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-17 05:41:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-17 05:41:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-11-17 05:41:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-11-17 05:41:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2021-11-17 05:41:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2021-11-17 05:41:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 05:41:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-17 05:41:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-17 05:41:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-17 05:41:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-17 05:41:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 05:41:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 05:41:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-11-17 05:41:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-11-17 05:41:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-17 05:41:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-17 05:41:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 05:41:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 05:41:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2021-11-17 05:41:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2021-11-17 05:41:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2021-11-17 05:41:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2021-11-17 05:41:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 05:41:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 05:41:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-17 05:41:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-17 05:41:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-17 05:41:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-17 05:41:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2021-11-17 05:41:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2021-11-17 05:41:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-17 05:41:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-17 05:41:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single___1 [2021-11-17 05:41:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single___1 [2021-11-17 05:41:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 05:41:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 05:41:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2021-11-17 05:41:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2021-11-17 05:41:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2021-11-17 05:41:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2021-11-17 05:41:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 05:41:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 05:41:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2021-11-17 05:41:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2021-11-17 05:41:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 05:41:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-17 05:41:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-17 05:41:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-17 05:41:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-17 05:41:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 05:41:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 05:41:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2021-11-17 05:41:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2021-11-17 05:41:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2021-11-17 05:41:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2021-11-17 05:41:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 05:41:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 05:41:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-17 05:41:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-17 05:41:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-17 05:41:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-17 05:41:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2021-11-17 05:41:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2021-11-17 05:41:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-11-17 05:41:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-11-17 05:41:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-17 05:41:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-17 05:41:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_5 [2021-11-17 05:41:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_5 [2021-11-17 05:41:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 05:41:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-17 05:41:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-17 05:41:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-17 05:41:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2021-11-17 05:41:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2021-11-17 05:41:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single___0 [2021-11-17 05:41:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single___0 [2021-11-17 05:41:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-17 05:41:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-17 05:41:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 05:41:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 05:41:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 05:41:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-17 05:41:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-17 05:41:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2021-11-17 05:41:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2021-11-17 05:41:01,589 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 05:41:01,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 05:41:01,867 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 05:41:07,498 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 05:41:07,518 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 05:41:07,521 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-17 05:41:07,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:41:07 BoogieIcfgContainer [2021-11-17 05:41:07,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 05:41:07,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 05:41:07,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 05:41:07,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 05:41:07,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:40:55" (1/3) ... [2021-11-17 05:41:07,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d68b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:41:07, skipping insertion in model container [2021-11-17 05:41:07,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:40:59" (2/3) ... [2021-11-17 05:41:07,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48d68b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:41:07, skipping insertion in model container [2021-11-17 05:41:07,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:41:07" (3/3) ... [2021-11-17 05:41:07,533 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--prism54--prism54.ko-entry_point.cil.out.i [2021-11-17 05:41:07,537 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 05:41:07,537 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 05:41:07,580 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 05:41:07,584 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 [2021-11-17 05:41:07,585 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 05:41:07,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 1891 states, 1320 states have (on average 1.3106060606060606) internal successors, (1730), 1350 states have internal predecessors, (1730), 459 states have call successors, (459), 111 states have call predecessors, (459), 110 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) [2021-11-17 05:41:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-17 05:41:07,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:41:07,643 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 05:41:07,644 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:41:07,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:41:07,648 INFO L85 PathProgramCache]: Analyzing trace with hash -363408964, now seen corresponding path program 1 times [2021-11-17 05:41:07,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:41:07,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933729793] [2021-11-17 05:41:07,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:41:07,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:41:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:41:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:41:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:41:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 05:41:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:41:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 05:41:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:41:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 05:41:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 05:41:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 05:41:08,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:41:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 05:41:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 05:41:08,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:41:08,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933729793] [2021-11-17 05:41:08,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933729793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:41:08,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:41:08,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 05:41:08,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350701796] [2021-11-17 05:41:08,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:41:08,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 05:41:08,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:41:08,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 05:41:08,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:41:08,863 INFO L87 Difference]: Start difference. First operand has 1891 states, 1320 states have (on average 1.3106060606060606) internal successors, (1730), 1350 states have internal predecessors, (1730), 459 states have call successors, (459), 111 states have call predecessors, (459), 110 states have return successors, (451), 448 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 05:41:10,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:41:15,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:41:15,771 INFO L93 Difference]: Finished difference Result 4052 states and 5859 transitions. [2021-11-17 05:41:15,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:41:15,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-11-17 05:41:15,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:41:15,885 INFO L225 Difference]: With dead ends: 4052 [2021-11-17 05:41:15,885 INFO L226 Difference]: Without dead ends: 2113 [2021-11-17 05:41:15,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-17 05:41:15,897 INFO L933 BasicCegarLoop]: 2418 mSDtfsCounter, 2683 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 2547 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2808 SdHoareTripleChecker+Valid, 4285 SdHoareTripleChecker+Invalid, 4039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2547 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:41:15,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2808 Valid, 4285 Invalid, 4039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2547 Valid, 1491 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2021-11-17 05:41:15,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2021-11-17 05:41:16,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1843. [2021-11-17 05:41:16,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1282 states have (on average 1.2870514820592824) internal successors, (1650), 1302 states have internal predecessors, (1650), 451 states have call successors, (451), 110 states have call predecessors, (451), 109 states have return successors, (450), 447 states have call predecessors, (450), 450 states have call successors, (450) [2021-11-17 05:41:16,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2551 transitions. [2021-11-17 05:41:16,072 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2551 transitions. Word has length 119 [2021-11-17 05:41:16,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:41:16,073 INFO L470 AbstractCegarLoop]: Abstraction has 1843 states and 2551 transitions. [2021-11-17 05:41:16,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 05:41:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2551 transitions. [2021-11-17 05:41:16,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-17 05:41:16,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:41:16,080 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 05:41:16,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 05:41:16,081 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:41:16,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:41:16,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1015622410, now seen corresponding path program 1 times [2021-11-17 05:41:16,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:41:16,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266903643] [2021-11-17 05:41:16,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:41:16,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:41:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:41:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:41:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:41:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 05:41:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:41:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 05:41:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:41:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 05:41:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 05:41:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 05:41:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:41:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 05:41:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:16,604 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-17 05:41:16,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:41:16,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266903643] [2021-11-17 05:41:16,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266903643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:41:16,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:41:16,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 05:41:16,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340170196] [2021-11-17 05:41:16,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:41:16,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:41:16,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:41:16,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:41:16,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 05:41:16,607 INFO L87 Difference]: Start difference. First operand 1843 states and 2551 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 05:41:18,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:41:20,783 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:41:22,895 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:41:31,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:41:31,160 INFO L93 Difference]: Finished difference Result 5666 states and 8000 transitions. [2021-11-17 05:41:31,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 05:41:31,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-11-17 05:41:31,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:41:31,180 INFO L225 Difference]: With dead ends: 5666 [2021-11-17 05:41:31,181 INFO L226 Difference]: Without dead ends: 3833 [2021-11-17 05:41:31,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-11-17 05:41:31,188 INFO L933 BasicCegarLoop]: 2699 mSDtfsCounter, 5179 mSDsluCounter, 4531 mSDsCounter, 0 mSdLazyCounter, 4294 mSolverCounterSat, 3870 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5531 SdHoareTripleChecker+Valid, 7230 SdHoareTripleChecker+Invalid, 8167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3870 IncrementalHoareTripleChecker+Valid, 4294 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2021-11-17 05:41:31,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5531 Valid, 7230 Invalid, 8167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3870 Valid, 4294 Invalid, 3 Unknown, 0 Unchecked, 14.0s Time] [2021-11-17 05:41:31,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2021-11-17 05:41:31,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 3328. [2021-11-17 05:41:31,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 2314 states have (on average 1.2830596369922214) internal successors, (2969), 2354 states have internal predecessors, (2969), 807 states have call successors, (807), 208 states have call predecessors, (807), 206 states have return successors, (806), 795 states have call predecessors, (806), 806 states have call successors, (806) [2021-11-17 05:41:31,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4582 transitions. [2021-11-17 05:41:31,300 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4582 transitions. Word has length 119 [2021-11-17 05:41:31,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:41:31,301 INFO L470 AbstractCegarLoop]: Abstraction has 3328 states and 4582 transitions. [2021-11-17 05:41:31,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-17 05:41:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4582 transitions. [2021-11-17 05:41:31,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-17 05:41:31,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:41:31,308 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:41:31,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 05:41:31,308 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:41:31,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:41:31,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1873490133, now seen corresponding path program 1 times [2021-11-17 05:41:31,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:41:31,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430636698] [2021-11-17 05:41:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:41:31,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:41:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:41:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:41:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:41:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 05:41:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 05:41:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-11-17 05:41:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:41:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 05:41:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 05:41:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:31,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 05:41:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:41:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 05:41:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 05:41:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:41:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 05:41:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:31,958 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:41:31,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:41:31,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430636698] [2021-11-17 05:41:31,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430636698] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:41:31,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:41:31,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:41:31,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469118562] [2021-11-17 05:41:31,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:41:31,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:41:31,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:41:31,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:41:31,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:41:31,962 INFO L87 Difference]: Start difference. First operand 3328 states and 4582 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 05:41:34,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:41:36,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:41:37,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:41:50,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:41:50,899 INFO L93 Difference]: Finished difference Result 10903 states and 15412 transitions. [2021-11-17 05:41:50,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:41:50,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2021-11-17 05:41:50,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:41:50,944 INFO L225 Difference]: With dead ends: 10903 [2021-11-17 05:41:50,944 INFO L226 Difference]: Without dead ends: 7590 [2021-11-17 05:41:50,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-11-17 05:41:50,973 INFO L933 BasicCegarLoop]: 3244 mSDtfsCounter, 5439 mSDsluCounter, 11481 mSDsCounter, 0 mSdLazyCounter, 8824 mSolverCounterSat, 3890 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5868 SdHoareTripleChecker+Valid, 14725 SdHoareTripleChecker+Invalid, 12716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3890 IncrementalHoareTripleChecker+Valid, 8824 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-11-17 05:41:50,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5868 Valid, 14725 Invalid, 12716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3890 Valid, 8824 Invalid, 2 Unknown, 0 Unchecked, 18.2s Time] [2021-11-17 05:41:50,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7590 states. [2021-11-17 05:41:51,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7590 to 6632. [2021-11-17 05:41:51,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6632 states, 4608 states have (on average 1.2823350694444444) internal successors, (5909), 4696 states have internal predecessors, (5909), 1610 states have call successors, (1610), 416 states have call predecessors, (1610), 413 states have return successors, (1617), 1579 states have call predecessors, (1617), 1609 states have call successors, (1617) [2021-11-17 05:41:51,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6632 states to 6632 states and 9136 transitions. [2021-11-17 05:41:51,234 INFO L78 Accepts]: Start accepts. Automaton has 6632 states and 9136 transitions. Word has length 152 [2021-11-17 05:41:51,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:41:51,235 INFO L470 AbstractCegarLoop]: Abstraction has 6632 states and 9136 transitions. [2021-11-17 05:41:51,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 4 states have internal predecessors, (97), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 05:41:51,235 INFO L276 IsEmpty]: Start isEmpty. Operand 6632 states and 9136 transitions. [2021-11-17 05:41:51,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-17 05:41:51,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:41:51,242 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:41:51,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 05:41:51,242 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:41:51,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:41:51,243 INFO L85 PathProgramCache]: Analyzing trace with hash -2069342834, now seen corresponding path program 1 times [2021-11-17 05:41:51,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:41:51,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633091336] [2021-11-17 05:41:51,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:41:51,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:41:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:41:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:41:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:41:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 05:41:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 05:41:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-17 05:41:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 05:41:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 05:41:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 05:41:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 05:41:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 05:41:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:41:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 05:41:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 05:41:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 05:41:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 05:41:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:41:51,759 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:41:51,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:41:51,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633091336] [2021-11-17 05:41:51,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633091336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:41:51,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:41:51,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:41:51,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962533324] [2021-11-17 05:41:51,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:41:51,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:41:51,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:41:51,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:41:51,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:41:51,762 INFO L87 Difference]: Start difference. First operand 6632 states and 9136 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 05:41:53,869 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:41:55,925 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:42:04,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:42:04,826 INFO L93 Difference]: Finished difference Result 21775 states and 30784 transitions. [2021-11-17 05:42:04,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:42:04,826 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 154 [2021-11-17 05:42:04,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:42:04,914 INFO L225 Difference]: With dead ends: 21775 [2021-11-17 05:42:04,915 INFO L226 Difference]: Without dead ends: 15158 [2021-11-17 05:42:04,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-11-17 05:42:04,947 INFO L933 BasicCegarLoop]: 2605 mSDtfsCounter, 7106 mSDsluCounter, 7721 mSDsCounter, 0 mSdLazyCounter, 5727 mSolverCounterSat, 5699 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7537 SdHoareTripleChecker+Valid, 10326 SdHoareTripleChecker+Invalid, 11428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5699 IncrementalHoareTripleChecker+Valid, 5727 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2021-11-17 05:42:04,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7537 Valid, 10326 Invalid, 11428 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5699 Valid, 5727 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2021-11-17 05:42:04,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15158 states. [2021-11-17 05:42:05,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15158 to 13252. [2021-11-17 05:42:05,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13252 states, 9210 states have (on average 1.2818675352877307) internal successors, (11806), 9384 states have internal predecessors, (11806), 3214 states have call successors, (3214), 832 states have call predecessors, (3214), 827 states have return successors, (3245), 3155 states have call predecessors, (3245), 3213 states have call successors, (3245) [2021-11-17 05:42:05,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13252 states to 13252 states and 18265 transitions. [2021-11-17 05:42:05,404 INFO L78 Accepts]: Start accepts. Automaton has 13252 states and 18265 transitions. Word has length 154 [2021-11-17 05:42:05,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:42:05,405 INFO L470 AbstractCegarLoop]: Abstraction has 13252 states and 18265 transitions. [2021-11-17 05:42:05,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 05:42:05,406 INFO L276 IsEmpty]: Start isEmpty. Operand 13252 states and 18265 transitions. [2021-11-17 05:42:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-17 05:42:05,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:42:05,412 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:42:05,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 05:42:05,412 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:42:05,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:42:05,413 INFO L85 PathProgramCache]: Analyzing trace with hash 194742602, now seen corresponding path program 1 times [2021-11-17 05:42:05,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:42:05,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631971849] [2021-11-17 05:42:05,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:42:05,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:42:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:42:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:42:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:42:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 05:42:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 05:42:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:42:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 05:42:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 05:42:05,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 05:42:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 05:42:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 05:42:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 05:42:05,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 05:42:05,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-17 05:42:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:42:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:42:05,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:42:05,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631971849] [2021-11-17 05:42:05,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631971849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:42:05,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:42:05,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:42:05,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319651855] [2021-11-17 05:42:05,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:42:05,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:42:05,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:42:05,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:42:05,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:42:05,937 INFO L87 Difference]: Start difference. First operand 13252 states and 18265 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 05:42:08,042 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:42:10,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:42:12,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:42:23,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:42:25,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:42:25,898 INFO L93 Difference]: Finished difference Result 43539 states and 61555 transitions. [2021-11-17 05:42:25,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:42:25,899 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2021-11-17 05:42:25,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:42:26,138 INFO L225 Difference]: With dead ends: 43539 [2021-11-17 05:42:26,138 INFO L226 Difference]: Without dead ends: 30302 [2021-11-17 05:42:26,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-11-17 05:42:26,185 INFO L933 BasicCegarLoop]: 2610 mSDtfsCounter, 5979 mSDsluCounter, 9510 mSDsCounter, 0 mSdLazyCounter, 8035 mSolverCounterSat, 4442 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6409 SdHoareTripleChecker+Valid, 12120 SdHoareTripleChecker+Invalid, 12480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4442 IncrementalHoareTripleChecker+Valid, 8035 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2021-11-17 05:42:26,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6409 Valid, 12120 Invalid, 12480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4442 Valid, 8035 Invalid, 3 Unknown, 0 Unchecked, 18.9s Time] [2021-11-17 05:42:26,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30302 states. [2021-11-17 05:42:26,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30302 to 26496. [2021-11-17 05:42:26,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26496 states, 18418 states have (on average 1.281246606580519) internal successors, (23598), 18762 states have internal predecessors, (23598), 6420 states have call successors, (6420), 1666 states have call predecessors, (6420), 1657 states have return successors, (6515), 6307 states have call predecessors, (6515), 6419 states have call successors, (6515) [2021-11-17 05:42:27,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26496 states to 26496 states and 36533 transitions. [2021-11-17 05:42:27,195 INFO L78 Accepts]: Start accepts. Automaton has 26496 states and 36533 transitions. Word has length 153 [2021-11-17 05:42:27,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:42:27,195 INFO L470 AbstractCegarLoop]: Abstraction has 26496 states and 36533 transitions. [2021-11-17 05:42:27,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 05:42:27,196 INFO L276 IsEmpty]: Start isEmpty. Operand 26496 states and 36533 transitions. [2021-11-17 05:42:27,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-17 05:42:27,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:42:27,202 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:42:27,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 05:42:27,202 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:42:27,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:42:27,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1196338099, now seen corresponding path program 1 times [2021-11-17 05:42:27,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:42:27,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597420139] [2021-11-17 05:42:27,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:42:27,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:42:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:42:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:42:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:42:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 05:42:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 05:42:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 05:42:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 05:42:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-17 05:42:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 05:42:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 05:42:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:42:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 05:42:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 05:42:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:42:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-17 05:42:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:27,827 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:42:27,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:42:27,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597420139] [2021-11-17 05:42:27,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597420139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:42:27,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:42:27,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:42:27,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116473763] [2021-11-17 05:42:27,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:42:27,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:42:27,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:42:27,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:42:27,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:42:27,830 INFO L87 Difference]: Start difference. First operand 26496 states and 36533 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 05:42:29,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:42:32,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:42:34,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:42:47,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:42:47,140 INFO L93 Difference]: Finished difference Result 86299 states and 121985 transitions. [2021-11-17 05:42:47,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:42:47,141 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 155 [2021-11-17 05:42:47,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:42:47,509 INFO L225 Difference]: With dead ends: 86299 [2021-11-17 05:42:47,510 INFO L226 Difference]: Without dead ends: 59818 [2021-11-17 05:42:47,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2021-11-17 05:42:47,605 INFO L933 BasicCegarLoop]: 2613 mSDtfsCounter, 5987 mSDsluCounter, 9516 mSDsCounter, 0 mSdLazyCounter, 8050 mSolverCounterSat, 4443 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6404 SdHoareTripleChecker+Valid, 12129 SdHoareTripleChecker+Invalid, 12496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4443 IncrementalHoareTripleChecker+Valid, 8050 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:42:47,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6404 Valid, 12129 Invalid, 12496 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4443 Valid, 8050 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2021-11-17 05:42:47,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59818 states. [2021-11-17 05:42:49,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59818 to 52236. [2021-11-17 05:42:49,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52236 states, 36319 states have (on average 1.2809824059032462) internal successors, (46524), 36987 states have internal predecessors, (46524), 12620 states have call successors, (12620), 3313 states have call predecessors, (12620), 3296 states have return successors, (12875), 12403 states have call predecessors, (12875), 12619 states have call successors, (12875) [2021-11-17 05:42:49,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52236 states to 52236 states and 72019 transitions. [2021-11-17 05:42:49,549 INFO L78 Accepts]: Start accepts. Automaton has 52236 states and 72019 transitions. Word has length 155 [2021-11-17 05:42:49,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:42:49,551 INFO L470 AbstractCegarLoop]: Abstraction has 52236 states and 72019 transitions. [2021-11-17 05:42:49,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-17 05:42:49,552 INFO L276 IsEmpty]: Start isEmpty. Operand 52236 states and 72019 transitions. [2021-11-17 05:42:49,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-17 05:42:49,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:42:49,559 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:42:49,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 05:42:49,559 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:42:49,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:42:49,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1899478554, now seen corresponding path program 1 times [2021-11-17 05:42:49,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:42:49,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054280919] [2021-11-17 05:42:49,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:42:49,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:42:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:42:49,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:42:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:42:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 05:42:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 05:42:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 05:42:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 05:42:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 05:42:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-11-17 05:42:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:42:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 05:42:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 05:42:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 05:42:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 05:42:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 05:42:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 05:42:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-17 05:42:50,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:42:50,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054280919] [2021-11-17 05:42:50,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054280919] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:42:50,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710481121] [2021-11-17 05:42:50,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:42:50,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:42:50,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:42:50,296 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) [2021-11-17 05:42:50,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 05:42:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:51,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 8021 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 05:42:51,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:42:52,072 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:42:52,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:42:52,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710481121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:42:52,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:42:52,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-11-17 05:42:52,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050368515] [2021-11-17 05:42:52,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:42:52,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:42:52,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:42:52,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:42:52,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-11-17 05:42:52,073 INFO L87 Difference]: Start difference. First operand 52236 states and 72019 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 05:42:54,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:42:54,209 INFO L93 Difference]: Finished difference Result 130554 states and 179995 transitions. [2021-11-17 05:42:54,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 05:42:54,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2021-11-17 05:42:54,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:42:54,682 INFO L225 Difference]: With dead ends: 130554 [2021-11-17 05:42:54,682 INFO L226 Difference]: Without dead ends: 78333 [2021-11-17 05:42:54,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2021-11-17 05:42:54,837 INFO L933 BasicCegarLoop]: 3868 mSDtfsCounter, 2569 mSDsluCounter, 18006 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 21874 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 05:42:54,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2573 Valid, 21874 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 05:42:54,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78333 states. [2021-11-17 05:42:56,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78333 to 78038. [2021-11-17 05:42:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78038 states, 54282 states have (on average 1.2816034781327144) internal successors, (69568), 55298 states have internal predecessors, (69568), 18812 states have call successors, (18812), 4952 states have call predecessors, (18812), 4943 states have return successors, (19267), 18483 states have call predecessors, (19267), 18811 states have call successors, (19267) [2021-11-17 05:42:57,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78038 states to 78038 states and 107647 transitions. [2021-11-17 05:42:57,479 INFO L78 Accepts]: Start accepts. Automaton has 78038 states and 107647 transitions. Word has length 169 [2021-11-17 05:42:57,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:42:57,480 INFO L470 AbstractCegarLoop]: Abstraction has 78038 states and 107647 transitions. [2021-11-17 05:42:57,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 05:42:57,480 INFO L276 IsEmpty]: Start isEmpty. Operand 78038 states and 107647 transitions. [2021-11-17 05:42:57,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-17 05:42:57,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:42:57,488 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:42:57,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 05:42:57,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:42:57,704 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:42:57,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:42:57,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1648388896, now seen corresponding path program 1 times [2021-11-17 05:42:57,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:42:57,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365794719] [2021-11-17 05:42:57,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:42:57,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:42:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:42:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:42:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:42:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 05:42:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-17 05:42:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 05:42:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 05:42:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 05:42:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 05:42:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 05:42:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 05:42:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 05:42:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:42:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 05:42:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 05:42:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 05:42:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 05:42:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:58,547 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:42:58,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:42:58,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365794719] [2021-11-17 05:42:58,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365794719] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:42:58,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505836250] [2021-11-17 05:42:58,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:42:58,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:42:58,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:42:58,549 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) [2021-11-17 05:42:58,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 05:42:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:42:59,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 8023 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 05:42:59,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:43:00,207 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:43:00,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:43:00,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505836250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:43:00,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:43:00,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-11-17 05:43:00,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350232138] [2021-11-17 05:43:00,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:43:00,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:43:00,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:43:00,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:43:00,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-17 05:43:00,209 INFO L87 Difference]: Start difference. First operand 78038 states and 107647 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 05:43:03,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:43:03,127 INFO L93 Difference]: Finished difference Result 182264 states and 251343 transitions. [2021-11-17 05:43:03,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 05:43:03,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 170 [2021-11-17 05:43:03,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:43:03,554 INFO L225 Difference]: With dead ends: 182264 [2021-11-17 05:43:03,554 INFO L226 Difference]: Without dead ends: 104241 [2021-11-17 05:43:03,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-11-17 05:43:03,774 INFO L933 BasicCegarLoop]: 4424 mSDtfsCounter, 2569 mSDsluCounter, 20218 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 24642 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 05:43:03,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2573 Valid, 24642 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 05:43:03,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104241 states. [2021-11-17 05:43:06,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104241 to 103904. [2021-11-17 05:43:06,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103904 states, 72285 states have (on average 1.2817597011828181) internal successors, (92652), 73681 states have internal predecessors, (92652), 25004 states have call successors, (25004), 6591 states have call predecessors, (25004), 6614 states have return successors, (25683), 24555 states have call predecessors, (25683), 25003 states have call successors, (25683) [2021-11-17 05:43:07,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103904 states to 103904 states and 143339 transitions. [2021-11-17 05:43:07,257 INFO L78 Accepts]: Start accepts. Automaton has 103904 states and 143339 transitions. Word has length 170 [2021-11-17 05:43:07,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:43:07,258 INFO L470 AbstractCegarLoop]: Abstraction has 103904 states and 143339 transitions. [2021-11-17 05:43:07,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 05:43:07,259 INFO L276 IsEmpty]: Start isEmpty. Operand 103904 states and 143339 transitions. [2021-11-17 05:43:07,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-17 05:43:07,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:43:07,268 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:43:07,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 05:43:07,483 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,SelfDestructingSolverStorable7 [2021-11-17 05:43:07,484 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:43:07,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:43:07,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2059471711, now seen corresponding path program 1 times [2021-11-17 05:43:07,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:43:07,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016027110] [2021-11-17 05:43:07,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:43:07,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:43:07,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:07,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:43:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:07,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:43:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:43:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:43:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:43:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 05:43:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 05:43:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 05:43:08,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 05:43:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 05:43:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 05:43:08,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 05:43:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:43:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 05:43:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 05:43:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:43:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 05:43:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:43:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:43:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 05:43:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:08,285 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:43:08,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:43:08,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016027110] [2021-11-17 05:43:08,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016027110] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:43:08,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972562928] [2021-11-17 05:43:08,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:43:08,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:43:08,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:43:08,287 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) [2021-11-17 05:43:08,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 05:43:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:09,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 8025 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 05:43:09,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:43:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:43:09,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:43:09,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972562928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:43:09,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:43:09,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-11-17 05:43:09,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872660581] [2021-11-17 05:43:09,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:43:09,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:43:09,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:43:09,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:43:09,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-17 05:43:09,867 INFO L87 Difference]: Start difference. First operand 103904 states and 143339 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 05:43:13,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:43:13,686 INFO L93 Difference]: Finished difference Result 233974 states and 322691 transitions. [2021-11-17 05:43:13,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 05:43:13,687 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 171 [2021-11-17 05:43:13,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:43:14,238 INFO L225 Difference]: With dead ends: 233974 [2021-11-17 05:43:14,238 INFO L226 Difference]: Without dead ends: 130085 [2021-11-17 05:43:14,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-11-17 05:43:14,529 INFO L933 BasicCegarLoop]: 4427 mSDtfsCounter, 2569 mSDsluCounter, 20230 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 24657 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 05:43:14,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2573 Valid, 24657 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 05:43:14,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130085 states. [2021-11-17 05:43:17,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130085 to 103948. [2021-11-17 05:43:17,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103948 states, 72317 states have (on average 1.2816350235767524) internal successors, (92684), 73717 states have internal predecessors, (92684), 25004 states have call successors, (25004), 6591 states have call predecessors, (25004), 6626 states have return successors, (25701), 24563 states have call predecessors, (25701), 25003 states have call successors, (25701) [2021-11-17 05:43:18,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103948 states to 103948 states and 143389 transitions. [2021-11-17 05:43:18,593 INFO L78 Accepts]: Start accepts. Automaton has 103948 states and 143389 transitions. Word has length 171 [2021-11-17 05:43:18,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:43:18,594 INFO L470 AbstractCegarLoop]: Abstraction has 103948 states and 143389 transitions. [2021-11-17 05:43:18,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 05:43:18,594 INFO L276 IsEmpty]: Start isEmpty. Operand 103948 states and 143389 transitions. [2021-11-17 05:43:18,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-17 05:43:18,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:43:18,603 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:43:18,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 05:43:18,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:43:18,812 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:43:18,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:43:18,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1258082041, now seen corresponding path program 1 times [2021-11-17 05:43:18,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:43:18,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274839658] [2021-11-17 05:43:18,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:43:18,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:43:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:43:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:43:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:43:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 05:43:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:43:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 05:43:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 05:43:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-17 05:43:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 05:43:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 05:43:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 05:43:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 05:43:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:43:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 05:43:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 05:43:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:43:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 05:43:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 05:43:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 05:43:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 05:43:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:19,391 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:43:19,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:43:19,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274839658] [2021-11-17 05:43:19,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274839658] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:43:19,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855554277] [2021-11-17 05:43:19,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:43:19,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:43:19,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:43:19,394 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 05:43:19,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 05:43:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:43:20,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 8027 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 05:43:20,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:43:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-17 05:43:20,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:43:20,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855554277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:43:20,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:43:20,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-11-17 05:43:20,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683399686] [2021-11-17 05:43:20,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:43:20,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:43:20,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:43:20,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:43:20,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-17 05:43:20,983 INFO L87 Difference]: Start difference. First operand 103948 states and 143389 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-17 05:43:24,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:43:24,712 INFO L93 Difference]: Finished difference Result 234034 states and 322757 transitions. [2021-11-17 05:43:24,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 05:43:24,713 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 172 [2021-11-17 05:43:24,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:43:25,293 INFO L225 Difference]: With dead ends: 234034 [2021-11-17 05:43:25,293 INFO L226 Difference]: Without dead ends: 130101 [2021-11-17 05:43:25,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2021-11-17 05:43:25,852 INFO L933 BasicCegarLoop]: 4176 mSDtfsCounter, 2569 mSDsluCounter, 19226 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 23402 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 05:43:25,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2573 Valid, 23402 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 05:43:25,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130101 states.