./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--bluetooth--hci_uart.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--bluetooth--hci_uart.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 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 04:49:06,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 04:49:06,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 04:49:06,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 04:49:06,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 04:49:06,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 04:49:06,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 04:49:06,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 04:49:06,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 04:49:06,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 04:49:06,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 04:49:06,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 04:49:06,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 04:49:06,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 04:49:06,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 04:49:07,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 04:49:07,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 04:49:07,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 04:49:07,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 04:49:07,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 04:49:07,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 04:49:07,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 04:49:07,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 04:49:07,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 04:49:07,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 04:49:07,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 04:49:07,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 04:49:07,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 04:49:07,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 04:49:07,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 04:49:07,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 04:49:07,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 04:49:07,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 04:49:07,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 04:49:07,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 04:49:07,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 04:49:07,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 04:49:07,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 04:49:07,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 04:49:07,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 04:49:07,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 04:49:07,033 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 04:49:07,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 04:49:07,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 04:49:07,064 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 04:49:07,064 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 04:49:07,065 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 04:49:07,065 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 04:49:07,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 04:49:07,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 04:49:07,066 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 04:49:07,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 04:49:07,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 04:49:07,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 04:49:07,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 04:49:07,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 04:49:07,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 04:49:07,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 04:49:07,068 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 04:49:07,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 04:49:07,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 04:49:07,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 04:49:07,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 04:49:07,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:49:07,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 04:49:07,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 04:49:07,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 04:49:07,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 04:49:07,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 04:49:07,071 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 04:49:07,072 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 04:49:07,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 04:49:07,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 04:49:07,072 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2021-11-17 04:49:07,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 04:49:07,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 04:49:07,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 04:49:07,366 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 04:49:07,367 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 04:49:07,368 INFO L432 ainManager$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--bluetooth--hci_uart.ko-entry_point.cil.out.i [2021-11-17 04:49:07,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cb2e0315/80c495bb54464680ad9698dc2b9bbc4a/FLAGff9550b77 [2021-11-17 04:49:08,285 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 04:49:08,286 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--bluetooth--hci_uart.ko-entry_point.cil.out.i [2021-11-17 04:49:08,355 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cb2e0315/80c495bb54464680ad9698dc2b9bbc4a/FLAGff9550b77 [2021-11-17 04:49:08,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cb2e0315/80c495bb54464680ad9698dc2b9bbc4a [2021-11-17 04:49:08,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 04:49:08,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 04:49:08,435 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 04:49:08,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 04:49:08,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 04:49:08,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:49:08" (1/1) ... [2021-11-17 04:49:08,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3941f902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:08, skipping insertion in model container [2021-11-17 04:49:08,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:49:08" (1/1) ... [2021-11-17 04:49:08,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 04:49:08,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 04:49:12,538 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--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2021-11-17 04:49:12,604 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:49:12,642 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 04:49:13,201 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--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2021-11-17 04:49:13,209 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:49:13,462 INFO L208 MainTranslator]: Completed translation [2021-11-17 04:49:13,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13 WrapperNode [2021-11-17 04:49:13,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 04:49:13,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 04:49:13,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 04:49:13,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 04:49:13,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (1/1) ... [2021-11-17 04:49:13,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (1/1) ... [2021-11-17 04:49:13,871 INFO L137 Inliner]: procedures = 490, calls = 4671, calls flagged for inlining = 140, calls inlined = 118, statements flattened = 7273 [2021-11-17 04:49:13,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 04:49:13,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 04:49:13,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 04:49:13,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 04:49:13,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (1/1) ... [2021-11-17 04:49:13,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (1/1) ... [2021-11-17 04:49:13,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (1/1) ... [2021-11-17 04:49:13,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (1/1) ... [2021-11-17 04:49:14,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (1/1) ... [2021-11-17 04:49:14,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (1/1) ... [2021-11-17 04:49:14,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (1/1) ... [2021-11-17 04:49:14,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 04:49:14,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 04:49:14,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 04:49:14,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 04:49:14,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (1/1) ... [2021-11-17 04:49:14,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:49:14,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:49:14,149 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 04:49:14,171 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 04:49:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-17 04:49:14,184 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-17 04:49:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_prepare_pkt [2021-11-17 04:49:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_prepare_pkt [2021-11-17 04:49:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 04:49:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 04:49:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-17 04:49:14,185 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-17 04:49:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_setup [2021-11-17 04:49:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_setup [2021-11-17 04:49:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-17 04:49:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-17 04:49:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 04:49:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 04:49:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure ll_dequeue [2021-11-17 04:49:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_dequeue [2021-11-17 04:49:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_close [2021-11-17 04:49:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_close [2021-11-17 04:49:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-11-17 04:49:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-11-17 04:49:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 04:49:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 04:49:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 04:49:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 04:49:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_flush [2021-11-17 04:49:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_flush [2021-11-17 04:49:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure ath_dequeue [2021-11-17 04:49:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_dequeue [2021-11-17 04:49:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-17 04:49:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-17 04:49:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-17 04:49:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure h5_link_control [2021-11-17 04:49:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_link_control [2021-11-17 04:49:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 04:49:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 04:49:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 04:49:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 04:49:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc___1 [2021-11-17 04:49:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc___1 [2021-11-17 04:49:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2021-11-17 04:49:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2021-11-17 04:49:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 04:49:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure h4_enqueue [2021-11-17 04:49:14,190 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_enqueue [2021-11-17 04:49:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-17 04:49:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-17 04:49:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2021-11-17 04:49:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2021-11-17 04:49:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2021-11-17 04:49:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2021-11-17 04:49:14,191 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2021-11-17 04:49:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 04:49:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-17 04:49:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-17 04:49:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 04:49:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure __ll_do_awake [2021-11-17 04:49:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __ll_do_awake [2021-11-17 04:49:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2021-11-17 04:49:14,192 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2021-11-17 04:49:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure h5_peer_reset [2021-11-17 04:49:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_peer_reset [2021-11-17 04:49:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 04:49:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure h5_enqueue [2021-11-17 04:49:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_enqueue [2021-11-17 04:49:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_complete_rx_pkt [2021-11-17 04:49:14,193 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_complete_rx_pkt [2021-11-17 04:49:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 04:49:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 04:49:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_unregister_proto [2021-11-17 04:49:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_unregister_proto [2021-11-17 04:49:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 04:49:14,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 04:49:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure hci_get_drvdata [2021-11-17 04:49:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_get_drvdata [2021-11-17 04:49:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2021-11-17 04:49:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2021-11-17 04:49:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2021-11-17 04:49:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-11-17 04:49:14,195 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-11-17 04:49:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_recv [2021-11-17 04:49:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_recv [2021-11-17 04:49:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_register_proto [2021-11-17 04:49:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_register_proto [2021-11-17 04:49:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_recv [2021-11-17 04:49:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_recv [2021-11-17 04:49:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 04:49:14,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 04:49:14,197 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_flush [2021-11-17 04:49:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_flush [2021-11-17 04:49:14,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 04:49:14,197 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2021-11-17 04:49:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2021-11-17 04:49:14,197 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-11-17 04:49:14,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-11-17 04:49:14,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 04:49:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure bscp_get_crc [2021-11-17 04:49:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure bscp_get_crc [2021-11-17 04:49:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 04:49:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 04:49:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 04:49:14,198 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 04:49:14,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 04:49:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2021-11-17 04:49:14,199 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2021-11-17 04:49:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2021-11-17 04:49:14,199 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2021-11-17 04:49:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure ll_close [2021-11-17 04:49:14,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_close [2021-11-17 04:49:14,199 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 04:49:14,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 04:49:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure hci_register_dev [2021-11-17 04:49:14,200 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_register_dev [2021-11-17 04:49:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure send_hcill_cmd [2021-11-17 04:49:14,200 INFO L138 BoogieDeclarations]: Found implementation of procedure send_hcill_cmd [2021-11-17 04:49:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-17 04:49:14,200 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-17 04:49:14,200 INFO L130 BoogieDeclarations]: Found specification of procedure ath_flush [2021-11-17 04:49:14,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_flush [2021-11-17 04:49:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_msgdelim [2021-11-17 04:49:14,201 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_msgdelim [2021-11-17 04:49:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure h4_dequeue [2021-11-17 04:49:14,201 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_dequeue [2021-11-17 04:49:14,201 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2021-11-17 04:49:14,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2021-11-17 04:49:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure h5_prepare_pkt [2021-11-17 04:49:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_prepare_pkt [2021-11-17 04:49:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-17 04:49:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-17 04:49:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-17 04:49:14,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-17 04:49:14,202 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_open [2021-11-17 04:49:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_open [2021-11-17 04:49:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 04:49:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 04:49:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_close [2021-11-17 04:49:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_close [2021-11-17 04:49:14,203 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 04:49:14,203 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 04:49:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure h5_cfg_field [2021-11-17 04:49:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_cfg_field [2021-11-17 04:49:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 04:49:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 04:49:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 04:49:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 04:49:14,204 INFO L130 BoogieDeclarations]: Found specification of procedure h5_flush [2021-11-17 04:49:14,204 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_flush [2021-11-17 04:49:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-17 04:49:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-17 04:49:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure ll_check_data_len [2021-11-17 04:49:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_check_data_len [2021-11-17 04:49:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-17 04:49:14,205 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-17 04:49:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 04:49:14,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 04:49:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 04:49:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 04:49:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_one_byte [2021-11-17 04:49:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_one_byte [2021-11-17 04:49:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-17 04:49:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-17 04:49:14,206 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-11-17 04:49:14,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-11-17 04:49:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_set_baudrate [2021-11-17 04:49:14,207 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_set_baudrate [2021-11-17 04:49:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2021-11-17 04:49:14,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2021-11-17 04:49:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2021-11-17 04:49:14,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2021-11-17 04:49:14,207 INFO L130 BoogieDeclarations]: Found specification of procedure ath_open [2021-11-17 04:49:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_open [2021-11-17 04:49:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure ath_setup [2021-11-17 04:49:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_setup [2021-11-17 04:49:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 04:49:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 04:49:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_dequeue [2021-11-17 04:49:14,208 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_dequeue [2021-11-17 04:49:14,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 04:49:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 04:49:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure hci_free_dev [2021-11-17 04:49:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_free_dev [2021-11-17 04:49:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2021-11-17 04:49:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2021-11-17 04:49:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 04:49:14,209 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 04:49:14,209 INFO L130 BoogieDeclarations]: Found specification of procedure h4_open [2021-11-17 04:49:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_open [2021-11-17 04:49:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-17 04:49:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-17 04:49:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-17 04:49:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-17 04:49:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2021-11-17 04:49:14,210 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2021-11-17 04:49:14,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 04:49:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure __hci_cmd_sync [2021-11-17 04:49:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __hci_cmd_sync [2021-11-17 04:49:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure ath_close [2021-11-17 04:49:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_close [2021-11-17 04:49:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_crc_update [2021-11-17 04:49:14,211 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_crc_update [2021-11-17 04:49:14,211 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 04:49:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 04:49:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 04:49:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-17 04:49:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-17 04:49:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-11-17 04:49:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-11-17 04:49:14,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-17 04:49:14,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-17 04:49:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2021-11-17 04:49:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2021-11-17 04:49:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 04:49:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure h4_close [2021-11-17 04:49:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_close [2021-11-17 04:49:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2021-11-17 04:49:14,213 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2021-11-17 04:49:14,213 INFO L130 BoogieDeclarations]: Found specification of procedure h5_reset_rx [2021-11-17 04:49:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_reset_rx [2021-11-17 04:49:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-17 04:49:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-17 04:49:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_termios [2021-11-17 04:49:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_termios [2021-11-17 04:49:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv [2021-11-17 04:49:14,214 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv [2021-11-17 04:49:14,214 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 04:49:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 04:49:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 04:49:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 04:49:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-11-17 04:49:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-11-17 04:49:14,215 INFO L130 BoogieDeclarations]: Found specification of procedure ath_recv [2021-11-17 04:49:14,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_recv [2021-11-17 04:49:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2021-11-17 04:49:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2021-11-17 04:49:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure h5_close [2021-11-17 04:49:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_close [2021-11-17 04:49:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_dequeue [2021-11-17 04:49:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_dequeue [2021-11-17 04:49:14,216 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-17 04:49:14,216 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-17 04:49:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_one_byte [2021-11-17 04:49:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_one_byte [2021-11-17 04:49:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_open [2021-11-17 04:49:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_open [2021-11-17 04:49:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure h5_dequeue [2021-11-17 04:49:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_dequeue [2021-11-17 04:49:14,217 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_delim [2021-11-17 04:49:14,217 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_delim [2021-11-17 04:49:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2021-11-17 04:49:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2021-11-17 04:49:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-17 04:49:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-17 04:49:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure ath_enqueue [2021-11-17 04:49:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_enqueue [2021-11-17 04:49:14,218 INFO L130 BoogieDeclarations]: Found specification of procedure h5_open [2021-11-17 04:49:14,218 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_open [2021-11-17 04:49:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-17 04:49:14,219 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-17 04:49:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure ll_enqueue [2021-11-17 04:49:14,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_enqueue [2021-11-17 04:49:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 04:49:14,219 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 04:49:14,219 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv_buf [2021-11-17 04:49:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv_buf [2021-11-17 04:49:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 04:49:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 04:49:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 04:49:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-11-17 04:49:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-11-17 04:49:14,220 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-11-17 04:49:14,220 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-11-17 04:49:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 04:49:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 04:49:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2021-11-17 04:49:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2021-11-17 04:49:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure h5_recv [2021-11-17 04:49:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_recv [2021-11-17 04:49:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure ll_open [2021-11-17 04:49:14,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_open [2021-11-17 04:49:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tx_wakeup [2021-11-17 04:49:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tx_wakeup [2021-11-17 04:49:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 04:49:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 04:49:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 04:49:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 04:49:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_set_baudrate [2021-11-17 04:49:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_set_baudrate [2021-11-17 04:49:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure ll_flush [2021-11-17 04:49:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_flush [2021-11-17 04:49:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_enqueue [2021-11-17 04:49:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_enqueue [2021-11-17 04:49:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure h5_complete_rx_pkt [2021-11-17 04:49:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_complete_rx_pkt [2021-11-17 04:49:14,223 INFO L130 BoogieDeclarations]: Found specification of procedure ll_recv [2021-11-17 04:49:14,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_recv [2021-11-17 04:49:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_write_work [2021-11-17 04:49:14,224 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_write_work [2021-11-17 04:49:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-17 04:49:14,224 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-17 04:49:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-17 04:49:14,224 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-17 04:49:14,224 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 04:49:14,224 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 04:49:14,225 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2021-11-17 04:49:14,225 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2021-11-17 04:49:14,225 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_enqueue [2021-11-17 04:49:14,225 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_enqueue [2021-11-17 04:49:14,225 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-17 04:49:14,225 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-17 04:49:14,225 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 04:49:14,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 04:49:14,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 04:49:14,226 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2021-11-17 04:49:14,226 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2021-11-17 04:49:14,226 INFO L130 BoogieDeclarations]: Found specification of procedure h4_flush [2021-11-17 04:49:14,226 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_flush [2021-11-17 04:49:15,075 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 04:49:15,079 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 04:49:15,674 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 04:49:24,612 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 04:49:24,640 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 04:49:24,640 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 04:49:24,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:49:24 BoogieIcfgContainer [2021-11-17 04:49:24,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 04:49:24,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 04:49:24,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 04:49:24,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 04:49:24,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:49:08" (1/3) ... [2021-11-17 04:49:24,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf7c5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:49:24, skipping insertion in model container [2021-11-17 04:49:24,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:49:13" (2/3) ... [2021-11-17 04:49:24,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf7c5f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:49:24, skipping insertion in model container [2021-11-17 04:49:24,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:49:24" (3/3) ... [2021-11-17 04:49:24,656 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2021-11-17 04:49:24,661 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 04:49:24,661 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 04:49:24,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 04:49:24,813 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 04:49:24,814 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 04:49:24,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 2694 states, 1836 states have (on average 1.3600217864923747) internal successors, (2497), 1890 states have internal predecessors, (2497), 709 states have call successors, (709), 148 states have call predecessors, (709), 147 states have return successors, (699), 686 states have call predecessors, (699), 699 states have call successors, (699) [2021-11-17 04:49:24,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-17 04:49:24,898 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:49:24,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:49:24,899 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:49:24,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:49:24,905 INFO L85 PathProgramCache]: Analyzing trace with hash 919352225, now seen corresponding path program 1 times [2021-11-17 04:49:24,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:49:24,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259913874] [2021-11-17 04:49:24,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:49:24,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:49:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:25,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:49:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:25,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:49:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:25,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:49:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:25,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-17 04:49:25,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:49:25,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259913874] [2021-11-17 04:49:25,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259913874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:49:25,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:49:25,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 04:49:25,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269130917] [2021-11-17 04:49:25,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:49:25,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 04:49:25,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:49:25,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 04:49:25,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 04:49:25,767 INFO L87 Difference]: Start difference. First operand has 2694 states, 1836 states have (on average 1.3600217864923747) internal successors, (2497), 1890 states have internal predecessors, (2497), 709 states have call successors, (709), 148 states have call predecessors, (709), 147 states have return successors, (699), 686 states have call predecessors, (699), 699 states have call successors, (699) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:49:29,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:49:34,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:49:34,352 INFO L93 Difference]: Finished difference Result 6003 states and 9011 transitions. [2021-11-17 04:49:34,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:49:34,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2021-11-17 04:49:34,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:49:34,400 INFO L225 Difference]: With dead ends: 6003 [2021-11-17 04:49:34,401 INFO L226 Difference]: Without dead ends: 3273 [2021-11-17 04:49:34,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:49:34,437 INFO L933 BasicCegarLoop]: 3969 mSDtfsCounter, 4107 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 1303 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4481 SdHoareTripleChecker+Valid, 6643 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1303 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-17 04:49:34,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4481 Valid, 6643 Invalid, 2416 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1303 Valid, 1112 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2021-11-17 04:49:34,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2021-11-17 04:49:34,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2909. [2021-11-17 04:49:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 1991 states have (on average 1.3470617780010046) internal successors, (2682), 2033 states have internal predecessors, (2682), 740 states have call successors, (740), 178 states have call predecessors, (740), 177 states have return successors, (739), 726 states have call predecessors, (739), 739 states have call successors, (739) [2021-11-17 04:49:34,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4161 transitions. [2021-11-17 04:49:34,714 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4161 transitions. Word has length 57 [2021-11-17 04:49:34,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:49:34,720 INFO L470 AbstractCegarLoop]: Abstraction has 2909 states and 4161 transitions. [2021-11-17 04:49:34,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-17 04:49:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4161 transitions. [2021-11-17 04:49:34,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-17 04:49:34,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:49:34,739 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 04:49:34,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 04:49:34,739 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:49:34,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:49:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1907866497, now seen corresponding path program 1 times [2021-11-17 04:49:34,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:49:34,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988846137] [2021-11-17 04:49:34,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:49:34,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:49:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:35,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 04:49:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:35,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 04:49:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:35,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:49:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:35,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 04:49:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:35,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 04:49:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:35,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:49:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:35,285 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-17 04:49:35,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:49:35,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988846137] [2021-11-17 04:49:35,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988846137] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:49:35,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:49:35,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 04:49:35,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314149533] [2021-11-17 04:49:35,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:49:35,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 04:49:35,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:49:35,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 04:49:35,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:49:35,289 INFO L87 Difference]: Start difference. First operand 2909 states and 4161 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-17 04:49:40,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:49:45,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:49:58,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:49:58,170 INFO L93 Difference]: Finished difference Result 6744 states and 9984 transitions. [2021-11-17 04:49:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 04:49:58,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 74 [2021-11-17 04:49:58,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:49:58,201 INFO L225 Difference]: With dead ends: 6744 [2021-11-17 04:49:58,201 INFO L226 Difference]: Without dead ends: 3841 [2021-11-17 04:49:58,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-17 04:49:58,220 INFO L933 BasicCegarLoop]: 3554 mSDtfsCounter, 2524 mSDsluCounter, 17037 mSDsCounter, 0 mSdLazyCounter, 9438 mSolverCounterSat, 2204 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2914 SdHoareTripleChecker+Valid, 20591 SdHoareTripleChecker+Invalid, 11643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2204 IncrementalHoareTripleChecker+Valid, 9438 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:49:58,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2914 Valid, 20591 Invalid, 11643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2204 Valid, 9438 Invalid, 1 Unknown, 0 Unchecked, 22.3s Time] [2021-11-17 04:49:58,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2021-11-17 04:49:58,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 2916. [2021-11-17 04:49:58,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 1996 states have (on average 1.3461923847695392) internal successors, (2687), 2038 states have internal predecessors, (2687), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 728 states have call predecessors, (744), 739 states have call successors, (744) [2021-11-17 04:49:58,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 4171 transitions. [2021-11-17 04:49:58,372 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 4171 transitions. Word has length 74 [2021-11-17 04:49:58,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:49:58,372 INFO L470 AbstractCegarLoop]: Abstraction has 2916 states and 4171 transitions. [2021-11-17 04:49:58,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-17 04:49:58,373 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 4171 transitions. [2021-11-17 04:49:58,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-17 04:49:58,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:49:58,383 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 04:49:58,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 04:49:58,384 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:49:58,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:49:58,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1626018516, now seen corresponding path program 1 times [2021-11-17 04:49:58,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:49:58,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400025671] [2021-11-17 04:49:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:49:58,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:49:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:58,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 04:49:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:58,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-17 04:49:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:49:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 04:49:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:58,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-11-17 04:49:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:49:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:49:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-17 04:49:58,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:49:58,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400025671] [2021-11-17 04:49:58,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400025671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:49:58,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:49:58,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 04:49:58,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394127544] [2021-11-17 04:49:58,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:49:58,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 04:49:58,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:49:58,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 04:49:58,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:49:58,841 INFO L87 Difference]: Start difference. First operand 2916 states and 4171 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-17 04:50:03,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:50:07,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:50:21,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:50:21,096 INFO L93 Difference]: Finished difference Result 6748 states and 9983 transitions. [2021-11-17 04:50:21,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 04:50:21,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) Word has length 81 [2021-11-17 04:50:21,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:50:21,132 INFO L225 Difference]: With dead ends: 6748 [2021-11-17 04:50:21,132 INFO L226 Difference]: Without dead ends: 3838 [2021-11-17 04:50:21,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-11-17 04:50:21,154 INFO L933 BasicCegarLoop]: 3597 mSDtfsCounter, 2490 mSDsluCounter, 17233 mSDsCounter, 0 mSdLazyCounter, 9471 mSolverCounterSat, 2187 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2881 SdHoareTripleChecker+Valid, 20830 SdHoareTripleChecker+Invalid, 11660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2187 IncrementalHoareTripleChecker+Valid, 9471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2021-11-17 04:50:21,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2881 Valid, 20830 Invalid, 11660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2187 Valid, 9471 Invalid, 2 Unknown, 0 Unchecked, 21.8s Time] [2021-11-17 04:50:21,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3838 states. [2021-11-17 04:50:21,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3838 to 2918. [2021-11-17 04:50:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 1998 states have (on average 1.3458458458458458) internal successors, (2689), 2039 states have internal predecessors, (2689), 740 states have call successors, (740), 178 states have call predecessors, (740), 179 states have return successors, (744), 729 states have call predecessors, (744), 739 states have call successors, (744) [2021-11-17 04:50:21,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4173 transitions. [2021-11-17 04:50:21,365 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4173 transitions. Word has length 81 [2021-11-17 04:50:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:50:21,366 INFO L470 AbstractCegarLoop]: Abstraction has 2918 states and 4173 transitions. [2021-11-17 04:50:21,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-17 04:50:21,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4173 transitions. [2021-11-17 04:50:21,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-17 04:50:21,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:50:21,380 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:50:21,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 04:50:21,380 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:50:21,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:50:21,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1630873535, now seen corresponding path program 1 times [2021-11-17 04:50:21,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:50:21,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903078879] [2021-11-17 04:50:21,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:50:21,382 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:50:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 04:50:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:50:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:50:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-17 04:50:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:50:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:50:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 04:50:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:50:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 04:50:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:50:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:50:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-11-17 04:50:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:50:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:50:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 04:50:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:50:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:50:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:50:21,837 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-17 04:50:21,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:50:21,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903078879] [2021-11-17 04:50:21,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903078879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:50:21,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:50:21,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 04:50:21,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790743630] [2021-11-17 04:50:21,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:50:21,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 04:50:21,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:50:21,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 04:50:21,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:50:21,840 INFO L87 Difference]: Start difference. First operand 2918 states and 4173 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 04:50:27,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:50:29,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:50:31,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:51:00,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:51:00,066 INFO L93 Difference]: Finished difference Result 11309 states and 17252 transitions. [2021-11-17 04:51:00,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 04:51:00,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2021-11-17 04:51:00,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:51:00,179 INFO L225 Difference]: With dead ends: 11309 [2021-11-17 04:51:00,179 INFO L226 Difference]: Without dead ends: 8397 [2021-11-17 04:51:00,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-11-17 04:51:00,197 INFO L933 BasicCegarLoop]: 3925 mSDtfsCounter, 10457 mSDsluCounter, 10761 mSDsCounter, 0 mSdLazyCounter, 14744 mSolverCounterSat, 9183 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11253 SdHoareTripleChecker+Valid, 14686 SdHoareTripleChecker+Invalid, 23928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9183 IncrementalHoareTripleChecker+Valid, 14744 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:51:00,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11253 Valid, 14686 Invalid, 23928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9183 Valid, 14744 Invalid, 1 Unknown, 0 Unchecked, 37.3s Time] [2021-11-17 04:51:00,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8397 states. [2021-11-17 04:51:00,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8397 to 5749. [2021-11-17 04:51:00,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5749 states, 3933 states have (on average 1.3463005339435545) internal successors, (5295), 4016 states have internal predecessors, (5295), 1459 states have call successors, (1459), 353 states have call predecessors, (1459), 356 states have return successors, (1468), 1437 states have call predecessors, (1468), 1458 states have call successors, (1468) [2021-11-17 04:51:00,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5749 states to 5749 states and 8222 transitions. [2021-11-17 04:51:00,558 INFO L78 Accepts]: Start accepts. Automaton has 5749 states and 8222 transitions. Word has length 131 [2021-11-17 04:51:00,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:51:00,559 INFO L470 AbstractCegarLoop]: Abstraction has 5749 states and 8222 transitions. [2021-11-17 04:51:00,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 04:51:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 5749 states and 8222 transitions. [2021-11-17 04:51:00,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-17 04:51:00,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:51:00,570 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 04:51:00,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 04:51:00,570 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:51:00,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:51:00,571 INFO L85 PathProgramCache]: Analyzing trace with hash 775698715, now seen corresponding path program 1 times [2021-11-17 04:51:00,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:51:00,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552260996] [2021-11-17 04:51:00,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:51:00,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:51:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:51:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 04:51:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-17 04:51:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 04:51:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:51:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 04:51:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:51:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-17 04:51:00,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:51:00,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552260996] [2021-11-17 04:51:00,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552260996] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:51:00,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:51:00,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:51:00,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288561779] [2021-11-17 04:51:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:51:00,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:51:00,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:51:00,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:51:00,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:51:00,971 INFO L87 Difference]: Start difference. First operand 5749 states and 8222 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:51:04,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:51:10,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:51:10,724 INFO L93 Difference]: Finished difference Result 13315 states and 19582 transitions. [2021-11-17 04:51:10,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 04:51:10,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2021-11-17 04:51:10,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:51:10,772 INFO L225 Difference]: With dead ends: 13315 [2021-11-17 04:51:10,772 INFO L226 Difference]: Without dead ends: 7572 [2021-11-17 04:51:10,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:51:10,800 INFO L933 BasicCegarLoop]: 3514 mSDtfsCounter, 6060 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 3820 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6430 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 6315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3820 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-17 04:51:10,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6430 Valid, 6516 Invalid, 6315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3820 Valid, 2494 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2021-11-17 04:51:10,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7572 states. [2021-11-17 04:51:11,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7572 to 5748. [2021-11-17 04:51:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 3933 states have (on average 1.3457920162725654) internal successors, (5293), 4016 states have internal predecessors, (5293), 1457 states have call successors, (1457), 354 states have call predecessors, (1457), 357 states have return successors, (1466), 1435 states have call predecessors, (1466), 1456 states have call successors, (1466) [2021-11-17 04:51:11,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 8216 transitions. [2021-11-17 04:51:11,097 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 8216 transitions. Word has length 92 [2021-11-17 04:51:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:51:11,097 INFO L470 AbstractCegarLoop]: Abstraction has 5748 states and 8216 transitions. [2021-11-17 04:51:11,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:51:11,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 8216 transitions. [2021-11-17 04:51:11,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-17 04:51:11,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:51:11,110 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 04:51:11,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 04:51:11,111 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:51:11,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:51:11,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2010818820, now seen corresponding path program 1 times [2021-11-17 04:51:11,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:51:11,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746020618] [2021-11-17 04:51:11,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:51:11,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:51:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:51:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:51:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-17 04:51:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 04:51:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:51:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 04:51:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:51:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:11,466 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-17 04:51:11,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:51:11,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746020618] [2021-11-17 04:51:11,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746020618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:51:11,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:51:11,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:51:11,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179419912] [2021-11-17 04:51:11,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:51:11,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:51:11,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:51:11,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:51:11,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:51:11,469 INFO L87 Difference]: Start difference. First operand 5748 states and 8216 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:51:14,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:51:21,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:51:21,314 INFO L93 Difference]: Finished difference Result 13310 states and 19562 transitions. [2021-11-17 04:51:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 04:51:21,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2021-11-17 04:51:21,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:51:21,352 INFO L225 Difference]: With dead ends: 13310 [2021-11-17 04:51:21,353 INFO L226 Difference]: Without dead ends: 7568 [2021-11-17 04:51:21,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:51:21,374 INFO L933 BasicCegarLoop]: 3549 mSDtfsCounter, 5992 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 3782 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6350 SdHoareTripleChecker+Valid, 6571 SdHoareTripleChecker+Invalid, 6288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3782 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-17 04:51:21,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6350 Valid, 6571 Invalid, 6288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3782 Valid, 2505 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2021-11-17 04:51:21,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7568 states. [2021-11-17 04:51:21,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7568 to 5744. [2021-11-17 04:51:21,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 3931 states have (on average 1.3454591706944798) internal successors, (5289), 4014 states have internal predecessors, (5289), 1455 states have call successors, (1455), 354 states have call predecessors, (1455), 357 states have return successors, (1464), 1433 states have call predecessors, (1464), 1454 states have call successors, (1464) [2021-11-17 04:51:21,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 8208 transitions. [2021-11-17 04:51:21,658 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 8208 transitions. Word has length 95 [2021-11-17 04:51:21,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:51:21,659 INFO L470 AbstractCegarLoop]: Abstraction has 5744 states and 8208 transitions. [2021-11-17 04:51:21,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:51:21,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 8208 transitions. [2021-11-17 04:51:21,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-17 04:51:21,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:51:21,670 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 04:51:21,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 04:51:21,671 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:51:21,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:51:21,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1415081116, now seen corresponding path program 1 times [2021-11-17 04:51:21,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:51:21,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101399655] [2021-11-17 04:51:21,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:51:21,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:51:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 04:51:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 04:51:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 04:51:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 04:51:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:51:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 04:51:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:51:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:21,957 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-17 04:51:21,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:51:21,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101399655] [2021-11-17 04:51:21,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101399655] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:51:21,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:51:21,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:51:21,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919894834] [2021-11-17 04:51:21,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:51:21,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:51:21,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:51:21,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:51:21,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:51:21,960 INFO L87 Difference]: Start difference. First operand 5744 states and 8208 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:51:25,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:51:31,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:51:31,627 INFO L93 Difference]: Finished difference Result 13302 states and 19540 transitions. [2021-11-17 04:51:31,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 04:51:31,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 94 [2021-11-17 04:51:31,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:51:31,667 INFO L225 Difference]: With dead ends: 13302 [2021-11-17 04:51:31,667 INFO L226 Difference]: Without dead ends: 7564 [2021-11-17 04:51:31,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:51:31,690 INFO L933 BasicCegarLoop]: 3527 mSDtfsCounter, 6015 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 3811 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6381 SdHoareTripleChecker+Valid, 6512 SdHoareTripleChecker+Invalid, 6301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3811 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:51:31,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6381 Valid, 6512 Invalid, 6301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3811 Valid, 2489 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2021-11-17 04:51:31,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7564 states. [2021-11-17 04:51:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7564 to 5740. [2021-11-17 04:51:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5740 states, 3929 states have (on average 1.3451259862560447) internal successors, (5285), 4012 states have internal predecessors, (5285), 1453 states have call successors, (1453), 354 states have call predecessors, (1453), 357 states have return successors, (1462), 1431 states have call predecessors, (1462), 1452 states have call successors, (1462) [2021-11-17 04:51:31,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5740 states to 5740 states and 8200 transitions. [2021-11-17 04:51:31,974 INFO L78 Accepts]: Start accepts. Automaton has 5740 states and 8200 transitions. Word has length 94 [2021-11-17 04:51:31,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:51:31,975 INFO L470 AbstractCegarLoop]: Abstraction has 5740 states and 8200 transitions. [2021-11-17 04:51:31,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:51:31,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5740 states and 8200 transitions. [2021-11-17 04:51:32,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-17 04:51:32,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:51:32,022 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-17 04:51:32,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 04:51:32,023 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:51:32,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:51:32,023 INFO L85 PathProgramCache]: Analyzing trace with hash 767501723, now seen corresponding path program 1 times [2021-11-17 04:51:32,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:51:32,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246909476] [2021-11-17 04:51:32,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:51:32,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:51:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 04:51:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 04:51:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 04:51:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:51:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:51:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 04:51:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:51:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-17 04:51:32,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:51:32,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246909476] [2021-11-17 04:51:32,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246909476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:51:32,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:51:32,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:51:32,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230771141] [2021-11-17 04:51:32,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:51:32,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:51:32,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:51:32,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:51:32,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:51:32,276 INFO L87 Difference]: Start difference. First operand 5740 states and 8200 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:51:34,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:51:41,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:51:41,975 INFO L93 Difference]: Finished difference Result 13294 states and 19518 transitions. [2021-11-17 04:51:41,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 04:51:41,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2021-11-17 04:51:41,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:51:42,013 INFO L225 Difference]: With dead ends: 13294 [2021-11-17 04:51:42,013 INFO L226 Difference]: Without dead ends: 7560 [2021-11-17 04:51:42,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:51:42,034 INFO L933 BasicCegarLoop]: 3536 mSDtfsCounter, 5970 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 3765 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6355 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 6259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3765 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:51:42,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6355 Valid, 6516 Invalid, 6259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3765 Valid, 2493 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2021-11-17 04:51:42,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7560 states. [2021-11-17 04:51:42,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7560 to 5736. [2021-11-17 04:51:42,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 3927 states have (on average 1.3447924624395213) internal successors, (5281), 4010 states have internal predecessors, (5281), 1451 states have call successors, (1451), 354 states have call predecessors, (1451), 357 states have return successors, (1460), 1429 states have call predecessors, (1460), 1450 states have call successors, (1460) [2021-11-17 04:51:42,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 8192 transitions. [2021-11-17 04:51:42,321 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 8192 transitions. Word has length 93 [2021-11-17 04:51:42,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:51:42,322 INFO L470 AbstractCegarLoop]: Abstraction has 5736 states and 8192 transitions. [2021-11-17 04:51:42,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 04:51:42,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 8192 transitions. [2021-11-17 04:51:42,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-17 04:51:42,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:51:42,332 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:51:42,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 04:51:42,332 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:51:42,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:51:42,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1492850177, now seen corresponding path program 1 times [2021-11-17 04:51:42,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:51:42,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413888480] [2021-11-17 04:51:42,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:51:42,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:51:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 04:51:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:51:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 04:51:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:51:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-11-17 04:51:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:51:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 04:51:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 04:51:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 04:51:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-11-17 04:51:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:51:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:51:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-17 04:51:42,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:51:42,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413888480] [2021-11-17 04:51:42,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413888480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:51:42,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:51:42,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 04:51:42,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015471398] [2021-11-17 04:51:42,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:51:42,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 04:51:42,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:51:42,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 04:51:42,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:51:42,626 INFO L87 Difference]: Start difference. First operand 5736 states and 8192 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-17 04:51:45,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:51:59,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:51:59,795 INFO L93 Difference]: Finished difference Result 20806 states and 31045 transitions. [2021-11-17 04:51:59,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 04:51:59,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2021-11-17 04:51:59,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:51:59,869 INFO L225 Difference]: With dead ends: 20806 [2021-11-17 04:51:59,869 INFO L226 Difference]: Without dead ends: 15076 [2021-11-17 04:51:59,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 04:51:59,895 INFO L933 BasicCegarLoop]: 3866 mSDtfsCounter, 10601 mSDsluCounter, 5800 mSDsCounter, 0 mSdLazyCounter, 6453 mSolverCounterSat, 10127 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11372 SdHoareTripleChecker+Valid, 9666 SdHoareTripleChecker+Invalid, 16581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10127 IncrementalHoareTripleChecker+Valid, 6453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:51:59,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11372 Valid, 9666 Invalid, 16581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10127 Valid, 6453 Invalid, 1 Unknown, 0 Unchecked, 16.2s Time] [2021-11-17 04:51:59,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15076 states. [2021-11-17 04:52:00,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15076 to 11332. [2021-11-17 04:52:00,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11332 states, 7754 states have (on average 1.3442094402888831) internal successors, (10423), 7919 states have internal predecessors, (10423), 2866 states have call successors, (2866), 704 states have call predecessors, (2866), 711 states have return successors, (2885), 2824 states have call predecessors, (2885), 2865 states have call successors, (2885) [2021-11-17 04:52:00,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11332 states to 11332 states and 16174 transitions. [2021-11-17 04:52:00,621 INFO L78 Accepts]: Start accepts. Automaton has 11332 states and 16174 transitions. Word has length 113 [2021-11-17 04:52:00,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:52:00,621 INFO L470 AbstractCegarLoop]: Abstraction has 11332 states and 16174 transitions. [2021-11-17 04:52:00,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-17 04:52:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 11332 states and 16174 transitions. [2021-11-17 04:52:00,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-17 04:52:00,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:52:00,633 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:52:00,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 04:52:00,633 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:52:00,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:52:00,634 INFO L85 PathProgramCache]: Analyzing trace with hash 551761797, now seen corresponding path program 1 times [2021-11-17 04:52:00,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:52:00,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396409073] [2021-11-17 04:52:00,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:52:00,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:52:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-17 04:52:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 04:52:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 04:52:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 04:52:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-11-17 04:52:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:52:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:52:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 04:52:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:52:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-17 04:52:00,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:52:00,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396409073] [2021-11-17 04:52:00,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396409073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:52:00,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:52:00,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 04:52:00,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597499054] [2021-11-17 04:52:00,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:52:00,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 04:52:00,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:52:00,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 04:52:00,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:52:00,946 INFO L87 Difference]: Start difference. First operand 11332 states and 16174 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 04:52:04,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:28,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:52:28,755 INFO L93 Difference]: Finished difference Result 44333 states and 67319 transitions. [2021-11-17 04:52:28,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 04:52:28,761 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2021-11-17 04:52:28,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:52:28,948 INFO L225 Difference]: With dead ends: 44333 [2021-11-17 04:52:28,948 INFO L226 Difference]: Without dead ends: 33007 [2021-11-17 04:52:29,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-11-17 04:52:29,004 INFO L933 BasicCegarLoop]: 4042 mSDtfsCounter, 11374 mSDsluCounter, 9751 mSDsCounter, 0 mSdLazyCounter, 12315 mSolverCounterSat, 11047 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12188 SdHoareTripleChecker+Valid, 13793 SdHoareTripleChecker+Invalid, 23363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11047 IncrementalHoareTripleChecker+Valid, 12315 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2021-11-17 04:52:29,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12188 Valid, 13793 Invalid, 23363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11047 Valid, 12315 Invalid, 1 Unknown, 0 Unchecked, 26.1s Time] [2021-11-17 04:52:29,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33007 states. [2021-11-17 04:52:30,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33007 to 22433. [2021-11-17 04:52:30,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22433 states, 15340 states have (on average 1.3429595827900913) internal successors, (20601), 15671 states have internal predecessors, (20601), 5673 states have call successors, (5673), 1404 states have call predecessors, (5673), 1419 states have return successors, (5712), 5589 states have call predecessors, (5712), 5672 states have call successors, (5712) [2021-11-17 04:52:30,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22433 states to 22433 states and 31986 transitions. [2021-11-17 04:52:30,342 INFO L78 Accepts]: Start accepts. Automaton has 22433 states and 31986 transitions. Word has length 135 [2021-11-17 04:52:30,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:52:30,343 INFO L470 AbstractCegarLoop]: Abstraction has 22433 states and 31986 transitions. [2021-11-17 04:52:30,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-17 04:52:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 22433 states and 31986 transitions. [2021-11-17 04:52:30,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-17 04:52:30,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:52:30,353 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:52:30,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 04:52:30,353 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:52:30,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:52:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash -883325423, now seen corresponding path program 1 times [2021-11-17 04:52:30,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:52:30,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895015478] [2021-11-17 04:52:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:52:30,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:52:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-17 04:52:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 04:52:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:52:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 04:52:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-11-17 04:52:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 04:52:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-11-17 04:52:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 04:52:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-11-17 04:52:30,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:52:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 04:52:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 04:52:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 04:52:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 04:52:30,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 04:52:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:52:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-17 04:52:30,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:52:30,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895015478] [2021-11-17 04:52:30,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895015478] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:52:30,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:52:30,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 04:52:30,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528280207] [2021-11-17 04:52:30,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:52:30,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 04:52:30,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:52:30,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 04:52:30,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:52:30,686 INFO L87 Difference]: Start difference. First operand 22433 states and 31986 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 04:52:34,144 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:52:58,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:52:58,413 INFO L93 Difference]: Finished difference Result 88015 states and 133527 transitions. [2021-11-17 04:52:58,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 04:52:58,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2021-11-17 04:52:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:52:58,972 INFO L225 Difference]: With dead ends: 88015 [2021-11-17 04:52:58,972 INFO L226 Difference]: Without dead ends: 65588 [2021-11-17 04:52:59,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-11-17 04:52:59,059 INFO L933 BasicCegarLoop]: 4111 mSDtfsCounter, 10720 mSDsluCounter, 9809 mSDsCounter, 0 mSdLazyCounter, 12310 mSolverCounterSat, 9230 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11529 SdHoareTripleChecker+Valid, 13920 SdHoareTripleChecker+Invalid, 21541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9230 IncrementalHoareTripleChecker+Valid, 12310 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2021-11-17 04:52:59,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11529 Valid, 13920 Invalid, 21541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9230 Valid, 12310 Invalid, 1 Unknown, 0 Unchecked, 24.7s Time] [2021-11-17 04:52:59,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65588 states. [2021-11-17 04:53:01,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65588 to 44446. [2021-11-17 04:53:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44446 states, 30374 states have (on average 1.3413774939092644) internal successors, (40743), 31037 states have internal predecessors, (40743), 11236 states have call successors, (11236), 2804 states have call predecessors, (11236), 2835 states have return successors, (11315), 11068 states have call predecessors, (11315), 11235 states have call successors, (11315) [2021-11-17 04:53:01,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44446 states to 44446 states and 63294 transitions. [2021-11-17 04:53:01,505 INFO L78 Accepts]: Start accepts. Automaton has 44446 states and 63294 transitions. Word has length 155 [2021-11-17 04:53:01,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:53:01,506 INFO L470 AbstractCegarLoop]: Abstraction has 44446 states and 63294 transitions. [2021-11-17 04:53:01,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-17 04:53:01,506 INFO L276 IsEmpty]: Start isEmpty. Operand 44446 states and 63294 transitions. [2021-11-17 04:53:01,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-17 04:53:01,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:53:01,515 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:53:01,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 04:53:01,516 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:53:01,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:53:01,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1324870987, now seen corresponding path program 1 times [2021-11-17 04:53:01,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:53:01,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133231445] [2021-11-17 04:53:01,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:53:01,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:53:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 04:53:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 04:53:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 04:53:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-11-17 04:53:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-17 04:53:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 04:53:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 04:53:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 04:53:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 04:53:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 04:53:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-11-17 04:53:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-17 04:53:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:01,836 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-17 04:53:01,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:53:01,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133231445] [2021-11-17 04:53:01,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133231445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:53:01,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:53:01,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 04:53:01,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635526969] [2021-11-17 04:53:01,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:53:01,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 04:53:01,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:53:01,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 04:53:01,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:53:01,838 INFO L87 Difference]: Start difference. First operand 44446 states and 63294 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 04:53:05,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:53:38,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:53:38,215 INFO L93 Difference]: Finished difference Result 173804 states and 263083 transitions. [2021-11-17 04:53:38,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 04:53:38,216 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2021-11-17 04:53:38,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:53:39,154 INFO L225 Difference]: With dead ends: 173804 [2021-11-17 04:53:39,154 INFO L226 Difference]: Without dead ends: 129364 [2021-11-17 04:53:39,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-11-17 04:53:39,320 INFO L933 BasicCegarLoop]: 4909 mSDtfsCounter, 9529 mSDsluCounter, 13009 mSDsCounter, 0 mSdLazyCounter, 15988 mSolverCounterSat, 8210 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10310 SdHoareTripleChecker+Valid, 17918 SdHoareTripleChecker+Invalid, 24199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 8210 IncrementalHoareTripleChecker+Valid, 15988 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2021-11-17 04:53:39,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10310 Valid, 17918 Invalid, 24199 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [8210 Valid, 15988 Invalid, 1 Unknown, 0 Unchecked, 29.9s Time] [2021-11-17 04:53:39,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129364 states. [2021-11-17 04:53:43,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129364 to 87086. [2021-11-17 04:53:43,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87086 states, 59430 states have (on average 1.33708564697964) internal successors, (79463), 60757 states have internal predecessors, (79463), 22004 states have call successors, (22004), 5588 states have call predecessors, (22004), 5651 states have return successors, (22163), 21668 states have call predecessors, (22163), 22003 states have call successors, (22163) [2021-11-17 04:53:44,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87086 states to 87086 states and 123630 transitions. [2021-11-17 04:53:44,038 INFO L78 Accepts]: Start accepts. Automaton has 87086 states and 123630 transitions. Word has length 153 [2021-11-17 04:53:44,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:53:44,039 INFO L470 AbstractCegarLoop]: Abstraction has 87086 states and 123630 transitions. [2021-11-17 04:53:44,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (25), 7 states have call predecessors, (25), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-17 04:53:44,039 INFO L276 IsEmpty]: Start isEmpty. Operand 87086 states and 123630 transitions. [2021-11-17 04:53:44,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-17 04:53:44,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:53:44,048 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:53:44,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 04:53:44,049 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:53:44,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:53:44,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1321779562, now seen corresponding path program 1 times [2021-11-17 04:53:44,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:53:44,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196123752] [2021-11-17 04:53:44,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:53:44,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:53:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-17 04:53:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 04:53:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:53:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 04:53:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-11-17 04:53:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 04:53:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-11-17 04:53:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 04:53:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-17 04:53:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 04:53:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:53:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 04:53:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 04:53:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:53:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:53:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 04:53:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:53:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-11-17 04:53:44,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:53:44,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196123752] [2021-11-17 04:53:44,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196123752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:53:44,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:53:44,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 04:53:44,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765685852] [2021-11-17 04:53:44,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:53:44,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 04:53:44,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:53:44,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 04:53:44,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:53:44,824 INFO L87 Difference]: Start difference. First operand 87086 states and 123630 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:53:48,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:54:22,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:54:22,374 INFO L93 Difference]: Finished difference Result 341625 states and 515637 transitions. [2021-11-17 04:54:22,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 04:54:22,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 164 [2021-11-17 04:54:22,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:54:24,087 INFO L225 Difference]: With dead ends: 341625 [2021-11-17 04:54:24,087 INFO L226 Difference]: Without dead ends: 254545 [2021-11-17 04:54:24,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-11-17 04:54:24,477 INFO L933 BasicCegarLoop]: 4024 mSDtfsCounter, 10433 mSDsluCounter, 9179 mSDsCounter, 0 mSdLazyCounter, 12584 mSolverCounterSat, 9262 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11207 SdHoareTripleChecker+Valid, 13203 SdHoareTripleChecker+Invalid, 21847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 9262 IncrementalHoareTripleChecker+Valid, 12584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:54:24,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11207 Valid, 13203 Invalid, 21847 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [9262 Valid, 12584 Invalid, 1 Unknown, 0 Unchecked, 24.6s Time] [2021-11-17 04:54:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254545 states. [2021-11-17 04:54:33,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254545 to 169996. [2021-11-17 04:54:33,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169996 states, 115851 states have (on average 1.3320213032256951) internal successors, (154316), 118506 states have internal predecessors, (154316), 42879 states have call successors, (42879), 11138 states have call predecessors, (42879), 11265 states have return successors, (43198), 42207 states have call predecessors, (43198), 42878 states have call successors, (43198) [2021-11-17 04:54:34,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169996 states to 169996 states and 240393 transitions. [2021-11-17 04:54:34,946 INFO L78 Accepts]: Start accepts. Automaton has 169996 states and 240393 transitions. Word has length 164 [2021-11-17 04:54:34,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:54:34,947 INFO L470 AbstractCegarLoop]: Abstraction has 169996 states and 240393 transitions. [2021-11-17 04:54:34,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-17 04:54:34,947 INFO L276 IsEmpty]: Start isEmpty. Operand 169996 states and 240393 transitions. [2021-11-17 04:54:35,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-17 04:54:35,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:54:35,007 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:54:35,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 04:54:35,007 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:54:35,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:54:35,008 INFO L85 PathProgramCache]: Analyzing trace with hash 226504828, now seen corresponding path program 1 times [2021-11-17 04:54:35,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:54:35,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501873677] [2021-11-17 04:54:35,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:54:35,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:54:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 04:54:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-17 04:54:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:54:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-17 04:54:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-11-17 04:54:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 04:54:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 04:54:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 04:54:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 04:54:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:54:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 04:54:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 04:54:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 04:54:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-17 04:54:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 04:54:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 04:54:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:54:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:54:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 04:54:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:54:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 04:54:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:54:35,620 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-17 04:54:35,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:54:35,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501873677] [2021-11-17 04:54:35,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501873677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:54:35,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:54:35,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 04:54:35,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166803769] [2021-11-17 04:54:35,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:54:35,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 04:54:35,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:54:35,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 04:54:35,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-17 04:54:35,623 INFO L87 Difference]: Start difference. First operand 169996 states and 240393 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-17 04:54:39,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []