./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.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 5cb637222875578a4a5fa96925cf9060bd5dc735b183bd12c9c7f65912176d3e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-22 23:26:14,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:26:14,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:26:14,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:26:14,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:26:14,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:26:14,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:26:14,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:26:14,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:26:14,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:26:14,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:26:14,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:26:14,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:26:14,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:26:14,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:26:14,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:26:14,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:26:14,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:26:14,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:26:14,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:26:14,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:26:14,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:26:14,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:26:14,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:26:14,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:26:14,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:26:14,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:26:14,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:26:14,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:26:14,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:26:14,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:26:14,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:26:14,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:26:14,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:26:14,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:26:14,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:26:14,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:26:14,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:26:14,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:26:14,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:26:14,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:26:14,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 23:26:15,012 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:26:15,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:26:15,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 23:26:15,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 23:26:15,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:26:15,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:26:15,014 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 23:26:15,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:26:15,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:26:15,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:26:15,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:26:15,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:26:15,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:26:15,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:26:15,017 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:26:15,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:26:15,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:26:15,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 23:26:15,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 23:26:15,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:26:15,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:26:15,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:26:15,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:26:15,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 23:26:15,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:26:15,019 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 23:26:15,019 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 23:26:15,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:26:15,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 23:26:15,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cb637222875578a4a5fa96925cf9060bd5dc735b183bd12c9c7f65912176d3e [2021-11-22 23:26:15,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:26:15,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:26:15,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:26:15,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:26:15,329 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:26:15,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i [2021-11-22 23:26:15,400 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f54e95eb/523913d1f4ed403d839c5011c153bae9/FLAGc8937b813 [2021-11-22 23:26:16,351 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:26:16,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i [2021-11-22 23:26:16,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f54e95eb/523913d1f4ed403d839c5011c153bae9/FLAGc8937b813 [2021-11-22 23:26:16,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f54e95eb/523913d1f4ed403d839c5011c153bae9 [2021-11-22 23:26:16,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:26:16,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:26:16,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:26:16,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:26:16,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:26:16,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:26:16" (1/1) ... [2021-11-22 23:26:16,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9d7efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:16, skipping insertion in model container [2021-11-22 23:26:16,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:26:16" (1/1) ... [2021-11-22 23:26:16,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:26:16,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:26:18,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i[226403,226416] [2021-11-22 23:26:22,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:26:22,442 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:26:22,617 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i[226403,226416] [2021-11-22 23:26:23,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:26:23,422 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:26:23,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23 WrapperNode [2021-11-22 23:26:23,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:26:23,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:26:23,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:26:23,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:26:23,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (1/1) ... [2021-11-22 23:26:23,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (1/1) ... [2021-11-22 23:26:27,072 INFO L137 Inliner]: procedures = 476, calls = 9531, calls flagged for inlining = 1989, calls inlined = 12341, statements flattened = 194178 [2021-11-22 23:26:27,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:26:27,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:26:27,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:26:27,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:26:27,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (1/1) ... [2021-11-22 23:26:27,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (1/1) ... [2021-11-22 23:26:28,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (1/1) ... [2021-11-22 23:26:28,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (1/1) ... [2021-11-22 23:26:30,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (1/1) ... [2021-11-22 23:26:30,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (1/1) ... [2021-11-22 23:26:31,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (1/1) ... [2021-11-22 23:26:31,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:26:31,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:26:31,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:26:31,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:26:31,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (1/1) ... [2021-11-22 23:26:31,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 23:26:32,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-22 23:26:32,020 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) [2021-11-22 23:26:32,026 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 [2021-11-22 23:26:32,051 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_dm_watchdog [2021-11-22 23:26:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_dm_watchdog [2021-11-22 23:26:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-11-22 23:26:32,052 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-11-22 23:26:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-22 23:26:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 23:26:32,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 23:26:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 23:26:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 23:26:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_fw_rsvdpagepkt [2021-11-22 23:26:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_fw_rsvdpagepkt [2021-11-22 23:26:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_fw_clock_on [2021-11-22 23:26:32,053 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_fw_clock_on [2021-11-22 23:26:32,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-22 23:26:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 23:26:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_cmd_send_packet [2021-11-22 23:26:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_cmd_send_packet [2021-11-22 23:26:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:26:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_disable_interrupt [2021-11-22 23:26:32,054 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_disable_interrupt [2021-11-22 23:26:32,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 23:26:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-22 23:26:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_get_hw_reg [2021-11-22 23:26:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_get_hw_reg [2021-11-22 23:26:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 23:26:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 23:26:32,055 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_enable_interrupt [2021-11-22 23:26:32,055 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_enable_interrupt [2021-11-22 23:26:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_fw_clock_off [2021-11-22 23:26:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_fw_clock_off [2021-11-22 23:26:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:26:32,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:26:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 23:26:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 23:26:32,056 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~TO~VOID [2021-11-22 23:26:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~TO~VOID [2021-11-22 23:26:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_fw_ps_rf_on [2021-11-22 23:26:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_fw_ps_rf_on [2021-11-22 23:26:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_scan_operation_backup [2021-11-22 23:26:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_scan_operation_backup [2021-11-22 23:26:32,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-22 23:26:32,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-22 23:26:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 23:26:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 23:26:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_hw_reg [2021-11-22 23:26:32,058 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_hw_reg [2021-11-22 23:26:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-22 23:26:32,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-22 23:26:32,058 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_fwlps_enter [2021-11-22 23:26:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_fwlps_enter [2021-11-22 23:26:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_fwlps_leave [2021-11-22 23:26:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_fwlps_leave [2021-11-22 23:26:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 23:26:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_update_interrupt_mask [2021-11-22 23:26:32,059 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_update_interrupt_mask [2021-11-22 23:26:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 23:26:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:26:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-11-22 23:26:34,359 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:26:34,361 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:31:32,998 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:31:33,189 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:31:33,190 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-22 23:31:33,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:31:33 BoogieIcfgContainer [2021-11-22 23:31:33,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:31:33,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 23:31:33,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 23:31:33,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 23:31:33,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:26:16" (1/3) ... [2021-11-22 23:31:33,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ccd212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:31:33, skipping insertion in model container [2021-11-22 23:31:33,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:26:23" (2/3) ... [2021-11-22 23:31:33,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ccd212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:31:33, skipping insertion in model container [2021-11-22 23:31:33,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:31:33" (3/3) ... [2021-11-22 23:31:33,232 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--rtl8723be--rtl8723be.ko-entry_point.cil.out.i [2021-11-22 23:31:33,236 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 23:31:33,237 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 23:31:33,392 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 23:31:33,408 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 [2021-11-22 23:31:33,409 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 23:31:33,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 42033 states, 41784 states have (on average 1.5015795519816197) internal successors, (62742), 41855 states have internal predecessors, (62742), 228 states have call successors, (228), 19 states have call predecessors, (228), 19 states have return successors, (228), 187 states have call predecessors, (228), 228 states have call successors, (228) [2021-11-22 23:31:33,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-22 23:31:33,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:31:33,958 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:31:33,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:31:33,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:31:33,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1796804946, now seen corresponding path program 1 times [2021-11-22 23:31:33,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:31:33,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464957545] [2021-11-22 23:31:33,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:31:33,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:35,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:31:35,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:31:35,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464957545] [2021-11-22 23:31:35,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464957545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:31:35,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:31:35,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 23:31:35,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575800885] [2021-11-22 23:31:35,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:31:35,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 23:31:35,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:31:35,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 23:31:35,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:31:35,707 INFO L87 Difference]: Start difference. First operand has 42033 states, 41784 states have (on average 1.5015795519816197) internal successors, (62742), 41855 states have internal predecessors, (62742), 228 states have call successors, (228), 19 states have call predecessors, (228), 19 states have return successors, (228), 187 states have call predecessors, (228), 228 states have call successors, (228) Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:31:36,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-22 23:31:38,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:31:38,940 INFO L93 Difference]: Finished difference Result 69228 states and 105056 transitions. [2021-11-22 23:31:38,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 23:31:38,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-22 23:31:38,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:31:39,209 INFO L225 Difference]: With dead ends: 69228 [2021-11-22 23:31:39,209 INFO L226 Difference]: Without dead ends: 44969 [2021-11-22 23:31:39,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 23:31:39,327 INFO L933 BasicCegarLoop]: 35047 mSDtfsCounter, 34764 mSDsluCounter, 34975 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34764 SdHoareTripleChecker+Valid, 70022 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-22 23:31:39,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34764 Valid, 70022 Invalid, 15 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-22 23:31:39,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44969 states. [2021-11-22 23:31:40,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44969 to 44969. [2021-11-22 23:31:40,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44969 states, 44818 states have (on average 1.513766790128966) internal successors, (67844), 44830 states have internal predecessors, (67844), 122 states have call successors, (122), 28 states have call predecessors, (122), 28 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122) [2021-11-22 23:31:40,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44969 states to 44969 states and 68088 transitions. [2021-11-22 23:31:40,836 INFO L78 Accepts]: Start accepts. Automaton has 44969 states and 68088 transitions. Word has length 86 [2021-11-22 23:31:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:31:40,837 INFO L470 AbstractCegarLoop]: Abstraction has 44969 states and 68088 transitions. [2021-11-22 23:31:40,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:31:40,838 INFO L276 IsEmpty]: Start isEmpty. Operand 44969 states and 68088 transitions. [2021-11-22 23:31:40,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-22 23:31:40,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:31:40,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:31:40,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 23:31:40,844 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:31:40,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:31:40,844 INFO L85 PathProgramCache]: Analyzing trace with hash 995395007, now seen corresponding path program 1 times [2021-11-22 23:31:40,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:31:40,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41187607] [2021-11-22 23:31:40,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:31:40,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:31:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:31:42,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:31:42,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 23:31:42,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41187607] [2021-11-22 23:31:42,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41187607] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 23:31:42,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 23:31:42,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 23:31:42,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859789524] [2021-11-22 23:31:42,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 23:31:42,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 23:31:42,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 23:31:42,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 23:31:42,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 23:31:42,163 INFO L87 Difference]: Start difference. First operand 44969 states and 68088 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:31:45,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 23:31:45,125 INFO L93 Difference]: Finished difference Result 134631 states and 204163 transitions. [2021-11-22 23:31:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 23:31:45,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-22 23:31:45,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 23:31:45,613 INFO L225 Difference]: With dead ends: 134631 [2021-11-22 23:31:45,614 INFO L226 Difference]: Without dead ends: 89794 [2021-11-22 23:31:45,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-22 23:31:45,767 INFO L933 BasicCegarLoop]: 40747 mSDtfsCounter, 34101 mSDsluCounter, 115512 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34101 SdHoareTripleChecker+Valid, 156259 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 23:31:45,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34101 Valid, 156259 Invalid, 91 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-22 23:31:45,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89794 states. [2021-11-22 23:31:47,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89794 to 89778. [2021-11-22 23:31:47,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89778 states, 89477 states have (on average 1.5141432993953754) internal successors, (135481), 89501 states have internal predecessors, (135481), 244 states have call successors, (244), 56 states have call predecessors, (244), 56 states have return successors, (366), 232 states have call predecessors, (366), 244 states have call successors, (366) [2021-11-22 23:31:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89778 states to 89778 states and 136091 transitions. [2021-11-22 23:31:48,658 INFO L78 Accepts]: Start accepts. Automaton has 89778 states and 136091 transitions. Word has length 89 [2021-11-22 23:31:48,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 23:31:48,661 INFO L470 AbstractCegarLoop]: Abstraction has 89778 states and 136091 transitions. [2021-11-22 23:31:48,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 23:31:48,661 INFO L276 IsEmpty]: Start isEmpty. Operand 89778 states and 136091 transitions. [2021-11-22 23:31:48,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2021-11-22 23:31:48,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 23:31:48,831 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 23:31:48,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 23:31:48,833 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 23:31:48,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:31:48,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1423439131, now seen corresponding path program 1 times [2021-11-22 23:31:48,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 23:31:48,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142004357] [2021-11-22 23:31:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 23:31:48,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms