./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 173e3943 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-173e394 [2021-11-06 14:47:36,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 14:47:36,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 14:47:36,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 14:47:36,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 14:47:36,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 14:47:36,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 14:47:36,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 14:47:36,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 14:47:36,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 14:47:36,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 14:47:36,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 14:47:36,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 14:47:36,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 14:47:36,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 14:47:36,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 14:47:36,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 14:47:36,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 14:47:36,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 14:47:36,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 14:47:36,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 14:47:36,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 14:47:36,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 14:47:36,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 14:47:36,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 14:47:36,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 14:47:36,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 14:47:36,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 14:47:36,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 14:47:36,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 14:47:36,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 14:47:36,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 14:47:36,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 14:47:36,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 14:47:36,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 14:47:36,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 14:47:36,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 14:47:36,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 14:47:36,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 14:47:36,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 14:47:36,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 14:47:36,646 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 14:47:36,667 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 14:47:36,667 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 14:47:36,668 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 14:47:36,668 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 14:47:36,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 14:47:36,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 14:47:36,669 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 14:47:36,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 14:47:36,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 14:47:36,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 14:47:36,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 14:47:36,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 14:47:36,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 14:47:36,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 14:47:36,670 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 14:47:36,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 14:47:36,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 14:47:36,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 14:47:36,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 14:47:36,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:47:36,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 14:47:36,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 14:47:36,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 14:47:36,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 14:47:36,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 14:47:36,672 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 14:47:36,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 14:47:36,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 14:47:36,672 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 14:47:36,672 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cb637222875578a4a5fa96925cf9060bd5dc735b183bd12c9c7f65912176d3e [2021-11-06 14:47:36,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 14:47:36,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 14:47:36,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 14:47:36,876 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 14:47:36,878 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 14:47:36,881 INFO L432 ainManager$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 [2021-11-06 14:47:36,929 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc579fcc/0526912f02654867a81edc8c28cb93cc/FLAG0a93550bf [2021-11-06 14:47:37,739 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 14:47:37,739 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 [2021-11-06 14:47:37,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc579fcc/0526912f02654867a81edc8c28cb93cc/FLAG0a93550bf [2021-11-06 14:47:37,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dc579fcc/0526912f02654867a81edc8c28cb93cc [2021-11-06 14:47:37,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 14:47:37,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 14:47:37,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 14:47:37,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 14:47:37,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 14:47:37,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:47:37" (1/1) ... [2021-11-06 14:47:37,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f90f069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:37, skipping insertion in model container [2021-11-06 14:47:37,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 02:47:37" (1/1) ... [2021-11-06 14:47:37,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 14:47:38,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 14:47:38,949 WARN L228 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] [2021-11-06 14:47:42,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:47:42,523 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 14:47:42,627 WARN L228 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] [2021-11-06 14:47:43,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 14:47:43,288 INFO L208 MainTranslator]: Completed translation [2021-11-06 14:47:43,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43 WrapperNode [2021-11-06 14:47:43,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 14:47:43,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 14:47:43,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 14:47:43,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 14:47:43,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (1/1) ... [2021-11-06 14:47:43,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (1/1) ... [2021-11-06 14:47:46,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 14:47:46,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 14:47:46,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 14:47:46,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 14:47:46,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (1/1) ... [2021-11-06 14:47:46,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (1/1) ... [2021-11-06 14:47:47,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (1/1) ... [2021-11-06 14:47:47,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (1/1) ... [2021-11-06 14:47:48,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (1/1) ... [2021-11-06 14:47:49,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (1/1) ... [2021-11-06 14:47:49,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (1/1) ... [2021-11-06 14:47:50,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 14:47:50,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 14:47:50,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 14:47:50,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 14:47:50,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (1/1) ... [2021-11-06 14:47:50,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 14:47:50,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 14:47:50,572 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) [2021-11-06 14:47:50,584 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 [2021-11-06 14:47:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_dm_watchdog [2021-11-06 14:47:50,601 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_dm_watchdog [2021-11-06 14:47:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-11-06 14:47:50,602 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-11-06 14:47:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-06 14:47:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 14:47:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 14:47:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 14:47:50,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 14:47:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_fw_rsvdpagepkt [2021-11-06 14:47:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_fw_rsvdpagepkt [2021-11-06 14:47:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_fw_clock_on [2021-11-06 14:47:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_fw_clock_on [2021-11-06 14:47:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-06 14:47:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 14:47:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_cmd_send_packet [2021-11-06 14:47:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_cmd_send_packet [2021-11-06 14:47:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_disable_interrupt [2021-11-06 14:47:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_disable_interrupt [2021-11-06 14:47:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 14:47:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 14:47:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_get_hw_reg [2021-11-06 14:47:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_get_hw_reg [2021-11-06 14:47:50,604 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 14:47:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 14:47:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_enable_interrupt [2021-11-06 14:47:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_enable_interrupt [2021-11-06 14:47:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_fw_clock_off [2021-11-06 14:47:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_fw_clock_off [2021-11-06 14:47:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 14:47:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 14:47:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 14:47:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 14:47:50,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~TO~VOID [2021-11-06 14:47:50,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~TO~VOID [2021-11-06 14:47:50,606 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_set_fw_ps_rf_on [2021-11-06 14:47:50,606 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_set_fw_ps_rf_on [2021-11-06 14:47:50,606 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_phy_scan_operation_backup [2021-11-06 14:47:50,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_phy_scan_operation_backup [2021-11-06 14:47:50,606 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-06 14:47:50,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-06 14:47:50,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 14:47:50,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 14:47:50,607 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_set_hw_reg [2021-11-06 14:47:50,607 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_set_hw_reg [2021-11-06 14:47:50,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-06 14:47:50,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-06 14:47:50,607 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_fwlps_enter [2021-11-06 14:47:50,607 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_fwlps_enter [2021-11-06 14:47:50,607 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8723be_fwlps_leave [2021-11-06 14:47:50,608 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8723be_fwlps_leave [2021-11-06 14:47:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 14:47:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8723be_update_interrupt_mask [2021-11-06 14:47:50,608 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8723be_update_interrupt_mask [2021-11-06 14:47:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 14:47:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 14:47:50,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-11-06 14:54:11,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 14:54:11,033 INFO L299 CfgBuilder]: Removed 24697 assume(true) statements. [2021-11-06 14:54:11,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:54:11 BoogieIcfgContainer [2021-11-06 14:54:11,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 14:54:11,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 14:54:11,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 14:54:11,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 14:54:11,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 02:47:37" (1/3) ... [2021-11-06 14:54:11,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d0b704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:54:11, skipping insertion in model container [2021-11-06 14:54:11,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 02:47:43" (2/3) ... [2021-11-06 14:54:11,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d0b704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:54:11, skipping insertion in model container [2021-11-06 14:54:11,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:54:11" (3/3) ... [2021-11-06 14:54:11,066 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 [2021-11-06 14:54:11,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 14:54:11,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-06 14:54:11,171 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 14:54:11,175 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 [2021-11-06 14:54:11,175 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-06 14:54:11,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 39854 states, 39605 states have (on average 1.52917560914026) internal successors, (60563), 39678 states have internal predecessors, (60563), 228 states have call successors, (228), 19 states have call predecessors, (228), 19 states have return successors, (228), 185 states have call predecessors, (228), 228 states have call successors, (228) [2021-11-06 14:54:11,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 14:54:11,625 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:54:11,625 INFO L513 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] [2021-11-06 14:54:11,626 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:54:11,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:54:11,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1654022025, now seen corresponding path program 1 times [2021-11-06 14:54:11,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:54:11,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43286835] [2021-11-06 14:54:11,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:54:11,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:54:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:54:12,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:54:12,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:54:12,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43286835] [2021-11-06 14:54:12,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43286835] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:54:12,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:54:12,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 14:54:12,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298273165] [2021-11-06 14:54:12,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:54:12,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:54:12,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:54:12,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:54:12,967 INFO L87 Difference]: Start difference. First operand has 39854 states, 39605 states have (on average 1.52917560914026) internal successors, (60563), 39678 states have internal predecessors, (60563), 228 states have call successors, (228), 19 states have call predecessors, (228), 19 states have return successors, (228), 185 states have call predecessors, (228), 228 states have call successors, (228) Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-06 14:54:16,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:54:16,840 INFO L93 Difference]: Finished difference Result 66041 states and 101869 transitions. [2021-11-06 14:54:16,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:54:16,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2021-11-06 14:54:16,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:54:17,040 INFO L225 Difference]: With dead ends: 66041 [2021-11-06 14:54:17,040 INFO L226 Difference]: Without dead ends: 42880 [2021-11-06 14:54:17,150 INFO L786 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 [2021-11-06 14:54:17,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42880 states. [2021-11-06 14:54:18,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42880 to 42880. [2021-11-06 14:54:18,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42880 states, 42729 states have (on average 1.538884598282197) internal successors, (65755), 42741 states have internal predecessors, (65755), 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) [2021-11-06 14:54:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42880 states to 42880 states and 65999 transitions. [2021-11-06 14:54:18,207 INFO L78 Accepts]: Start accepts. Automaton has 42880 states and 65999 transitions. Word has length 84 [2021-11-06 14:54:18,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:54:18,208 INFO L470 AbstractCegarLoop]: Abstraction has 42880 states and 65999 transitions. [2021-11-06 14:54:18,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-06 14:54:18,209 INFO L276 IsEmpty]: Start isEmpty. Operand 42880 states and 65999 transitions. [2021-11-06 14:54:18,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 14:54:18,216 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:54:18,216 INFO L513 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] [2021-11-06 14:54:18,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 14:54:18,217 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:54:18,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:54:18,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1470354055, now seen corresponding path program 1 times [2021-11-06 14:54:18,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:54:18,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642092701] [2021-11-06 14:54:18,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:54:18,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:54:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:54:19,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 14:54:19,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:54:19,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642092701] [2021-11-06 14:54:19,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642092701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:54:19,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:54:19,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 14:54:19,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951127568] [2021-11-06 14:54:19,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 14:54:19,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:54:19,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 14:54:19,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 14:54:19,227 INFO L87 Difference]: Start difference. First operand 42880 states and 65999 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2021-11-06 14:54:21,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:54:21,778 INFO L93 Difference]: Finished difference Result 128366 states and 197898 transitions. [2021-11-06 14:54:21,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 14:54:21,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 88 [2021-11-06 14:54:21,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:54:22,107 INFO L225 Difference]: With dead ends: 128366 [2021-11-06 14:54:22,108 INFO L226 Difference]: Without dead ends: 85618 [2021-11-06 14:54:22,213 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 14:54:22,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85618 states. [2021-11-06 14:54:23,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85618 to 85602. [2021-11-06 14:54:23,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85602 states, 85301 states have (on average 1.5393137243408634) internal successors, (131305), 85325 states have internal predecessors, (131305), 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) [2021-11-06 14:54:24,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85602 states to 85602 states and 131915 transitions. [2021-11-06 14:54:24,048 INFO L78 Accepts]: Start accepts. Automaton has 85602 states and 131915 transitions. Word has length 88 [2021-11-06 14:54:24,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:54:24,050 INFO L470 AbstractCegarLoop]: Abstraction has 85602 states and 131915 transitions. [2021-11-06 14:54:24,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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) [2021-11-06 14:54:24,051 INFO L276 IsEmpty]: Start isEmpty. Operand 85602 states and 131915 transitions. [2021-11-06 14:54:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-06 14:54:24,170 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:54:24,171 INFO L513 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] [2021-11-06 14:54:24,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 14:54:24,172 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 14:54:24,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:54:24,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1248499799, now seen corresponding path program 1 times [2021-11-06 14:54:24,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 14:54:24,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355089622] [2021-11-06 14:54:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:54:24,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 14:54:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:54:25,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-11-06 14:54:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:54:25,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-06 14:54:25,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:54:25,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-06 14:54:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:54:25,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-06 14:54:25,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:54:25,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-06 14:54:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:54:25,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-06 14:54:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:54:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-06 14:54:25,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 14:54:25,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355089622] [2021-11-06 14:54:25,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355089622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 14:54:25,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:54:25,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 14:54:25,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58434821] [2021-11-06 14:54:25,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 14:54:25,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 14:54:25,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 14:54:25,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 14:54:25,928 INFO L87 Difference]: Start difference. First operand 85602 states and 131915 transitions. Second operand has 7 states, 7 states have (on average 43.0) internal successors, (301), 6 states have internal predecessors, (301), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-06 14:55:24,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:55:24,837 INFO L93 Difference]: Finished difference Result 171874 states and 265280 transitions. [2021-11-06 14:55:24,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 14:55:24,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.0) internal successors, (301), 6 states have internal predecessors, (301), 2 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 314 [2021-11-06 14:55:24,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:55:25,386 INFO L225 Difference]: With dead ends: 171874 [2021-11-06 14:55:25,401 INFO L226 Difference]: Without dead ends: 86388 [2021-11-06 14:55:25,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-06 14:55:25,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86388 states.