./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.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 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:28:46,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:28:46,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:28:46,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:28:46,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:28:46,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:28:46,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:28:46,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:28:46,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:28:46,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:28:46,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:28:46,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:28:46,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:28:46,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:28:46,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:28:46,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:28:46,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:28:46,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:28:46,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:28:46,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:28:46,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:28:46,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:28:46,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:28:46,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:28:46,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:28:46,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:28:46,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:28:46,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:28:46,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:28:46,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:28:46,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:28:46,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:28:46,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:28:46,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:28:46,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:28:46,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:28:46,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:28:46,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:28:46,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:28:46,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:28:46,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:28:46,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:28:46,584 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:28:46,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:28:46,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:28:46,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:28:46,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:28:46,586 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:28:46,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:28:46,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:28:46,587 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:28:46,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:28:46,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:28:46,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:28:46,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:28:46,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:28:46,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:28:46,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:28:46,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:28:46,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:28:46,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:28:46,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:28:46,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:28:46,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:28:46,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:28:46,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:28:46,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:28:46,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:28:46,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:28:46,591 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:28:46,591 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:28:46,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:28:46,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:28:46,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b829e0b1083ca135908ac8582697cf0831b43587b46e1b9cc42429c7a2c7866 [2021-12-16 04:28:46,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:28:46,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:28:46,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:28:46,848 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:28:46,849 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:28:46,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-12-16 04:28:46,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16695fc04/db2b081c4a3941768f25bb7372047e59/FLAG23d5f7a48 [2021-12-16 04:28:47,600 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:28:47,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-12-16 04:28:47,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16695fc04/db2b081c4a3941768f25bb7372047e59/FLAG23d5f7a48 [2021-12-16 04:28:48,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16695fc04/db2b081c4a3941768f25bb7372047e59 [2021-12-16 04:28:48,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:28:48,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:28:48,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:28:48,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:28:48,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:28:48,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:28:48" (1/1) ... [2021-12-16 04:28:48,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d2e210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:48, skipping insertion in model container [2021-12-16 04:28:48,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:28:48" (1/1) ... [2021-12-16 04:28:48,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:28:48,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:28:50,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2021-12-16 04:28:50,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:28:51,073 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:28:51,552 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[378939,378952] [2021-12-16 04:28:51,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:28:51,718 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:28:51,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51 WrapperNode [2021-12-16 04:28:51,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:28:51,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:28:51,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:28:51,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:28:51,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (1/1) ... [2021-12-16 04:28:51,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (1/1) ... [2021-12-16 04:28:52,054 INFO L137 Inliner]: procedures = 341, calls = 3940, calls flagged for inlining = 136, calls inlined = 92, statements flattened = 5421 [2021-12-16 04:28:52,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:28:52,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:28:52,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:28:52,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:28:52,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (1/1) ... [2021-12-16 04:28:52,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (1/1) ... [2021-12-16 04:28:52,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (1/1) ... [2021-12-16 04:28:52,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (1/1) ... [2021-12-16 04:28:52,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (1/1) ... [2021-12-16 04:28:52,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (1/1) ... [2021-12-16 04:28:52,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (1/1) ... [2021-12-16 04:28:52,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:28:52,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:28:52,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:28:52,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:28:52,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (1/1) ... [2021-12-16 04:28:52,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:28:52,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:28:52,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 04:28:52,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 04:28:52,455 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-12-16 04:28:52,455 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-12-16 04:28:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2021-12-16 04:28:52,456 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2021-12-16 04:28:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-16 04:28:52,456 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-16 04:28:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2021-12-16 04:28:52,456 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2021-12-16 04:28:52,456 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-16 04:28:52,457 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-16 04:28:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2021-12-16 04:28:52,457 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2021-12-16 04:28:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:28:52,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:28:52,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:28:52,457 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:28:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-12-16 04:28:52,458 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-12-16 04:28:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2021-12-16 04:28:52,458 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2021-12-16 04:28:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-12-16 04:28:52,458 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-12-16 04:28:52,458 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2021-12-16 04:28:52,458 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2021-12-16 04:28:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 04:28:52,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 04:28:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:28:52,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:28:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2021-12-16 04:28:52,459 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2021-12-16 04:28:52,459 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2021-12-16 04:28:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2021-12-16 04:28:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2021-12-16 04:28:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2021-12-16 04:28:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2021-12-16 04:28:52,460 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2021-12-16 04:28:52,460 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2021-12-16 04:28:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2021-12-16 04:28:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-16 04:28:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-16 04:28:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:28:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:28:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2021-12-16 04:28:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2021-12-16 04:28:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:28:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:28:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-12-16 04:28:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-12-16 04:28:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:28:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:28:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-16 04:28:52,463 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-16 04:28:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2021-12-16 04:28:52,463 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2021-12-16 04:28:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-12-16 04:28:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-12-16 04:28:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2021-12-16 04:28:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2021-12-16 04:28:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-16 04:28:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-16 04:28:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2021-12-16 04:28:52,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2021-12-16 04:28:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2021-12-16 04:28:52,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2021-12-16 04:28:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2021-12-16 04:28:52,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2021-12-16 04:28:52,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2021-12-16 04:28:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2021-12-16 04:28:52,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:28:52,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_5 [2021-12-16 04:28:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_5 [2021-12-16 04:28:52,467 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 04:28:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 04:28:52,467 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-12-16 04:28:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-12-16 04:28:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2021-12-16 04:28:52,468 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2021-12-16 04:28:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-16 04:28:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:28:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2021-12-16 04:28:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2021-12-16 04:28:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2021-12-16 04:28:52,469 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2021-12-16 04:28:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2021-12-16 04:28:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2021-12-16 04:28:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2021-12-16 04:28:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2021-12-16 04:28:52,470 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 04:28:52,470 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 04:28:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2021-12-16 04:28:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2021-12-16 04:28:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:28:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-12-16 04:28:52,471 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-12-16 04:28:52,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:28:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-12-16 04:28:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-12-16 04:28:52,472 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-16 04:28:52,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-16 04:28:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 04:28:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 04:28:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2021-12-16 04:28:52,473 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2021-12-16 04:28:52,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-16 04:28:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-16 04:28:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2021-12-16 04:28:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2021-12-16 04:28:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2021-12-16 04:28:52,474 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2021-12-16 04:28:52,474 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-16 04:28:52,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-16 04:28:52,475 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2021-12-16 04:28:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2021-12-16 04:28:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2021-12-16 04:28:52,476 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2021-12-16 04:28:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:28:52,476 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2021-12-16 04:28:52,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2021-12-16 04:28:52,477 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-16 04:28:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-16 04:28:52,479 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-16 04:28:52,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-16 04:28:52,480 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2021-12-16 04:28:52,481 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2021-12-16 04:28:52,481 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2021-12-16 04:28:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2021-12-16 04:28:52,482 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-16 04:28:52,482 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-16 04:28:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 04:28:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 04:28:52,487 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-12-16 04:28:52,487 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-12-16 04:28:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2021-12-16 04:28:52,488 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2021-12-16 04:28:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:28:52,488 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:28:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:28:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2021-12-16 04:28:52,488 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2021-12-16 04:28:52,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:28:52,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:28:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2021-12-16 04:28:52,489 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2021-12-16 04:28:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-16 04:28:52,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-16 04:28:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:28:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-16 04:28:52,489 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-16 04:28:52,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-16 04:28:52,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-16 04:28:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2021-12-16 04:28:52,490 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2021-12-16 04:28:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2021-12-16 04:28:52,490 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2021-12-16 04:28:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2021-12-16 04:28:52,490 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2021-12-16 04:28:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2021-12-16 04:28:52,491 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2021-12-16 04:28:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:28:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2021-12-16 04:28:52,491 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2021-12-16 04:28:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:28:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2021-12-16 04:28:52,491 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2021-12-16 04:28:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-16 04:28:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-16 04:28:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-16 04:28:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-16 04:28:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-16 04:28:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-16 04:28:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2021-12-16 04:28:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2021-12-16 04:28:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-16 04:28:52,493 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-16 04:28:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-16 04:28:52,493 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-16 04:28:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-16 04:28:52,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-16 04:28:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2021-12-16 04:28:52,493 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2021-12-16 04:28:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-16 04:28:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-16 04:28:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:28:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2021-12-16 04:28:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2021-12-16 04:28:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2021-12-16 04:28:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2021-12-16 04:28:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-16 04:28:52,495 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-16 04:28:52,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:28:52,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:28:53,086 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:28:53,088 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:28:53,327 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:28:56,769 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:28:56,794 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:28:56,794 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:28:56,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:28:56 BoogieIcfgContainer [2021-12-16 04:28:56,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:28:56,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:28:56,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:28:56,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:28:56,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:28:48" (1/3) ... [2021-12-16 04:28:56,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d4a59f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:28:56, skipping insertion in model container [2021-12-16 04:28:56,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:28:51" (2/3) ... [2021-12-16 04:28:56,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d4a59f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:28:56, skipping insertion in model container [2021-12-16 04:28:56,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:28:56" (3/3) ... [2021-12-16 04:28:56,807 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2021-12-16 04:28:56,812 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:28:56,812 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:28:56,860 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:28:56,866 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 04:28:56,866 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:28:56,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 1584 states, 1098 states have (on average 1.3597449908925319) internal successors, (1493), 1142 states have internal predecessors, (1493), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) [2021-12-16 04:28:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-16 04:28:56,929 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:28:56,930 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:28:56,931 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:28:56,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:28:56,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1429373024, now seen corresponding path program 1 times [2021-12-16 04:28:56,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:28:56,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933276086] [2021-12-16 04:28:56,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:28:56,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:28:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:28:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:28:57,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:28:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:28:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:28:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:57,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:28:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:28:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:28:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:28:58,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:28:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:28:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:28:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:28:58,181 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-16 04:28:58,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:28:58,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933276086] [2021-12-16 04:28:58,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933276086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:28:58,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:28:58,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:28:58,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356134265] [2021-12-16 04:28:58,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:28:58,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:28:58,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:28:58,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:28:58,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:28:58,222 INFO L87 Difference]: Start difference. First operand has 1584 states, 1098 states have (on average 1.3597449908925319) internal successors, (1493), 1142 states have internal predecessors, (1493), 396 states have call successors, (396), 89 states have call predecessors, (396), 88 states have return successors, (387), 368 states have call predecessors, (387), 387 states have call successors, (387) Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-16 04:29:02,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:29:02,718 INFO L93 Difference]: Finished difference Result 3312 states and 4895 transitions. [2021-12-16 04:29:02,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 04:29:02,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 163 [2021-12-16 04:29:02,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:29:02,756 INFO L225 Difference]: With dead ends: 3312 [2021-12-16 04:29:02,756 INFO L226 Difference]: Without dead ends: 1671 [2021-12-16 04:29:02,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:29:02,776 INFO L933 BasicCegarLoop]: 2114 mSDtfsCounter, 1011 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 1019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1019 SdHoareTripleChecker+Valid, 4074 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1019 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:29:02,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1019 Valid, 4074 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1019 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-12-16 04:29:02,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2021-12-16 04:29:02,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1522. [2021-12-16 04:29:02,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1058 states have (on average 1.3534971644612477) internal successors, (1432), 1091 states have internal predecessors, (1432), 377 states have call successors, (377), 87 states have call predecessors, (377), 86 states have return successors, (376), 357 states have call predecessors, (376), 376 states have call successors, (376) [2021-12-16 04:29:02,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2185 transitions. [2021-12-16 04:29:02,942 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2185 transitions. Word has length 163 [2021-12-16 04:29:02,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:29:02,942 INFO L470 AbstractCegarLoop]: Abstraction has 1522 states and 2185 transitions. [2021-12-16 04:29:02,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-16 04:29:02,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2185 transitions. [2021-12-16 04:29:02,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-16 04:29:02,955 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:29:02,956 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:29:02,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:29:02,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:29:02,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:29:02,958 INFO L85 PathProgramCache]: Analyzing trace with hash 184814678, now seen corresponding path program 1 times [2021-12-16 04:29:02,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:29:02,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490908727] [2021-12-16 04:29:02,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:29:02,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:29:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:29:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:29:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:29:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:29:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:29:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:29:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:03,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:29:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:29:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:29:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:29:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:03,659 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-16 04:29:03,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:29:03,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490908727] [2021-12-16 04:29:03,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490908727] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:29:03,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:29:03,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:29:03,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932148857] [2021-12-16 04:29:03,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:29:03,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:29:03,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:29:03,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:29:03,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:29:03,665 INFO L87 Difference]: Start difference. First operand 1522 states and 2185 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-16 04:29:09,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:29:09,645 INFO L93 Difference]: Finished difference Result 4193 states and 6061 transitions. [2021-12-16 04:29:09,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:29:09,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 163 [2021-12-16 04:29:09,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:29:09,668 INFO L225 Difference]: With dead ends: 4193 [2021-12-16 04:29:09,668 INFO L226 Difference]: Without dead ends: 2704 [2021-12-16 04:29:09,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:29:09,683 INFO L933 BasicCegarLoop]: 2218 mSDtfsCounter, 2714 mSDsluCounter, 3585 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 1678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2866 SdHoareTripleChecker+Valid, 5803 SdHoareTripleChecker+Invalid, 3815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1678 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:29:09,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2866 Valid, 5803 Invalid, 3815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1678 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-16 04:29:09,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2704 states. [2021-12-16 04:29:09,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2704 to 2463. [2021-12-16 04:29:09,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2463 states, 1720 states have (on average 1.3569767441860465) internal successors, (2334), 1782 states have internal predecessors, (2334), 598 states have call successors, (598), 145 states have call predecessors, (598), 144 states have return successors, (597), 560 states have call predecessors, (597), 597 states have call successors, (597) [2021-12-16 04:29:09,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2463 states to 2463 states and 3529 transitions. [2021-12-16 04:29:09,806 INFO L78 Accepts]: Start accepts. Automaton has 2463 states and 3529 transitions. Word has length 163 [2021-12-16 04:29:09,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:29:09,809 INFO L470 AbstractCegarLoop]: Abstraction has 2463 states and 3529 transitions. [2021-12-16 04:29:09,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-16 04:29:09,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2463 states and 3529 transitions. [2021-12-16 04:29:09,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-16 04:29:09,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:29:09,812 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:29:09,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:29:09,813 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:29:09,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:29:09,813 INFO L85 PathProgramCache]: Analyzing trace with hash 971820423, now seen corresponding path program 1 times [2021-12-16 04:29:09,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:29:09,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811522450] [2021-12-16 04:29:09,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:29:09,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:29:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:29:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:29:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:29:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:29:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:29:10,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:29:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:29:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:29:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:29:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:29:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-16 04:29:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:10,509 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-16 04:29:10,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:29:10,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811522450] [2021-12-16 04:29:10,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811522450] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:29:10,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:29:10,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:29:10,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252570311] [2021-12-16 04:29:10,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:29:10,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:29:10,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:29:10,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:29:10,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:29:10,513 INFO L87 Difference]: Start difference. First operand 2463 states and 3529 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 04:29:16,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 04:29:17,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:29:17,204 INFO L93 Difference]: Finished difference Result 7010 states and 10136 transitions. [2021-12-16 04:29:17,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:29:17,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2021-12-16 04:29:17,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:29:17,234 INFO L225 Difference]: With dead ends: 7010 [2021-12-16 04:29:17,234 INFO L226 Difference]: Without dead ends: 4584 [2021-12-16 04:29:17,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:29:17,245 INFO L933 BasicCegarLoop]: 2360 mSDtfsCounter, 3215 mSDsluCounter, 3684 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 1879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3383 SdHoareTripleChecker+Valid, 6044 SdHoareTripleChecker+Invalid, 4118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1879 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-12-16 04:29:17,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3383 Valid, 6044 Invalid, 4118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1879 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-12-16 04:29:17,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4584 states. [2021-12-16 04:29:17,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4584 to 4154. [2021-12-16 04:29:17,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4154 states, 2913 states have (on average 1.3724682457947133) internal successors, (3998), 3037 states have internal predecessors, (3998), 988 states have call successors, (988), 253 states have call predecessors, (988), 252 states have return successors, (987), 913 states have call predecessors, (987), 987 states have call successors, (987) [2021-12-16 04:29:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4154 states to 4154 states and 5973 transitions. [2021-12-16 04:29:17,409 INFO L78 Accepts]: Start accepts. Automaton has 4154 states and 5973 transitions. Word has length 167 [2021-12-16 04:29:17,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:29:17,409 INFO L470 AbstractCegarLoop]: Abstraction has 4154 states and 5973 transitions. [2021-12-16 04:29:17,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 04:29:17,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4154 states and 5973 transitions. [2021-12-16 04:29:17,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-16 04:29:17,412 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:29:17,413 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:29:17,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:29:17,413 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:29:17,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:29:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash -999731685, now seen corresponding path program 1 times [2021-12-16 04:29:17,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:29:17,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226195237] [2021-12-16 04:29:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:29:17,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:29:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:29:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:29:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:29:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:29:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:29:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:29:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:29:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:29:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:29:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:17,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:29:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:18,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:18,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-16 04:29:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-12-16 04:29:18,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:29:18,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226195237] [2021-12-16 04:29:18,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226195237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:29:18,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:29:18,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:29:18,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048018727] [2021-12-16 04:29:18,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:29:18,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:29:18,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:29:18,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:29:18,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:29:18,035 INFO L87 Difference]: Start difference. First operand 4154 states and 5973 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 04:29:21,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:29:21,610 INFO L93 Difference]: Finished difference Result 5086 states and 7324 transitions. [2021-12-16 04:29:21,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:29:21,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 167 [2021-12-16 04:29:21,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:29:21,639 INFO L225 Difference]: With dead ends: 5086 [2021-12-16 04:29:21,639 INFO L226 Difference]: Without dead ends: 5083 [2021-12-16 04:29:21,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:29:21,643 INFO L933 BasicCegarLoop]: 2130 mSDtfsCounter, 3218 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 1739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3389 SdHoareTripleChecker+Valid, 3437 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1739 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-16 04:29:21,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3389 Valid, 3437 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1739 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-16 04:29:21,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2021-12-16 04:29:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 4610. [2021-12-16 04:29:21,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 3261 states have (on average 1.380558111008893) internal successors, (4502), 3391 states have internal predecessors, (4502), 1038 states have call successors, (1038), 319 states have call predecessors, (1038), 310 states have return successors, (1039), 953 states have call predecessors, (1039), 1037 states have call successors, (1039) [2021-12-16 04:29:21,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6579 transitions. [2021-12-16 04:29:21,825 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6579 transitions. Word has length 167 [2021-12-16 04:29:21,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:29:21,826 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6579 transitions. [2021-12-16 04:29:21,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-16 04:29:21,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6579 transitions. [2021-12-16 04:29:21,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-12-16 04:29:21,831 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:29:21,832 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-12-16 04:29:21,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 04:29:21,832 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:29:21,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:29:21,833 INFO L85 PathProgramCache]: Analyzing trace with hash 524624507, now seen corresponding path program 1 times [2021-12-16 04:29:21,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:29:21,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738341744] [2021-12-16 04:29:21,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:29:21,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:29:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:29:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:29:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:29:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:29:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:29:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:29:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:29:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:29:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:29:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:29:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-16 04:29:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-16 04:29:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-16 04:29:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-16 04:29:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-16 04:29:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-16 04:29:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:22,479 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-12-16 04:29:22,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:29:22,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738341744] [2021-12-16 04:29:22,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738341744] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:29:22,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:29:22,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 04:29:22,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917393125] [2021-12-16 04:29:22,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:29:22,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 04:29:22,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:29:22,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 04:29:22,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-16 04:29:22,482 INFO L87 Difference]: Start difference. First operand 4610 states and 6579 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-16 04:29:27,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:29:27,305 INFO L93 Difference]: Finished difference Result 10110 states and 14595 transitions. [2021-12-16 04:29:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 04:29:27,306 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 213 [2021-12-16 04:29:27,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:29:27,343 INFO L225 Difference]: With dead ends: 10110 [2021-12-16 04:29:27,343 INFO L226 Difference]: Without dead ends: 5547 [2021-12-16 04:29:27,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2021-12-16 04:29:27,365 INFO L933 BasicCegarLoop]: 1895 mSDtfsCounter, 4322 mSDsluCounter, 2410 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 3047 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4542 SdHoareTripleChecker+Valid, 4305 SdHoareTripleChecker+Invalid, 5062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3047 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:29:27,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4542 Valid, 4305 Invalid, 5062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3047 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2021-12-16 04:29:27,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5547 states. [2021-12-16 04:29:27,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5547 to 4614. [2021-12-16 04:29:27,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4614 states, 3266 states have (on average 1.3775260257195345) internal successors, (4499), 3394 states have internal predecessors, (4499), 1034 states have call successors, (1034), 320 states have call predecessors, (1034), 313 states have return successors, (1037), 953 states have call predecessors, (1037), 1033 states have call successors, (1037) [2021-12-16 04:29:27,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4614 states to 4614 states and 6570 transitions. [2021-12-16 04:29:27,608 INFO L78 Accepts]: Start accepts. Automaton has 4614 states and 6570 transitions. Word has length 213 [2021-12-16 04:29:27,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:29:27,609 INFO L470 AbstractCegarLoop]: Abstraction has 4614 states and 6570 transitions. [2021-12-16 04:29:27,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-16 04:29:27,610 INFO L276 IsEmpty]: Start isEmpty. Operand 4614 states and 6570 transitions. [2021-12-16 04:29:27,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-16 04:29:27,614 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:29:27,614 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-12-16 04:29:27,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 04:29:27,615 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:29:27,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:29:27,615 INFO L85 PathProgramCache]: Analyzing trace with hash 673112347, now seen corresponding path program 1 times [2021-12-16 04:29:27,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:29:27,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837188549] [2021-12-16 04:29:27,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:29:27,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:29:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:29:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:29:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:29:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:29:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:29:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:29:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:29:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:29:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:29:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:29:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-16 04:29:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-16 04:29:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:28,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-16 04:29:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:29:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-16 04:29:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-16 04:29:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-12-16 04:29:28,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:29:28,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837188549] [2021-12-16 04:29:28,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837188549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:29:28,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:29:28,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 04:29:28,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724041168] [2021-12-16 04:29:28,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:29:28,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 04:29:28,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:29:28,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 04:29:28,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-16 04:29:28,321 INFO L87 Difference]: Start difference. First operand 4614 states and 6570 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-16 04:29:35,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:29:35,668 INFO L93 Difference]: Finished difference Result 10106 states and 14559 transitions. [2021-12-16 04:29:35,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-16 04:29:35,668 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 212 [2021-12-16 04:29:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:29:35,699 INFO L225 Difference]: With dead ends: 10106 [2021-12-16 04:29:35,699 INFO L226 Difference]: Without dead ends: 5543 [2021-12-16 04:29:35,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2021-12-16 04:29:35,716 INFO L933 BasicCegarLoop]: 1894 mSDtfsCounter, 4204 mSDsluCounter, 3363 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 2990 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4422 SdHoareTripleChecker+Valid, 5257 SdHoareTripleChecker+Invalid, 6069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2990 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-16 04:29:35,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4422 Valid, 5257 Invalid, 6069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2990 Valid, 3079 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-12-16 04:29:35,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5543 states. [2021-12-16 04:29:35,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5543 to 4610. [2021-12-16 04:29:35,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 3266 states have (on average 1.3763012859767298) internal successors, (4495), 3390 states have internal predecessors, (4495), 1030 states have call successors, (1030), 320 states have call predecessors, (1030), 313 states have return successors, (1033), 953 states have call predecessors, (1033), 1029 states have call successors, (1033) [2021-12-16 04:29:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6558 transitions. [2021-12-16 04:29:35,939 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6558 transitions. Word has length 212 [2021-12-16 04:29:35,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:29:35,940 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6558 transitions. [2021-12-16 04:29:35,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-16 04:29:35,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6558 transitions. [2021-12-16 04:29:35,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-16 04:29:35,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:29:35,945 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-12-16 04:29:35,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 04:29:35,945 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:29:35,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:29:35,946 INFO L85 PathProgramCache]: Analyzing trace with hash 194956422, now seen corresponding path program 1 times [2021-12-16 04:29:35,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:29:35,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425190045] [2021-12-16 04:29:35,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:29:35,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:29:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:29:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:36,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:29:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:29:36,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:29:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:29:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-16 04:29:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-16 04:29:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-16 04:29:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-16 04:29:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:29:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-16 04:29:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:29:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:29:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-16 04:29:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-16 04:29:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-16 04:29:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-16 04:29:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-16 04:29:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:29:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2021-12-16 04:29:36,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:29:36,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425190045] [2021-12-16 04:29:36,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425190045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:29:36,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:29:36,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 04:29:36,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295018818] [2021-12-16 04:29:36,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:29:36,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 04:29:36,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:29:36,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 04:29:36,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-16 04:29:36,550 INFO L87 Difference]: Start difference. First operand 4610 states and 6558 transitions. Second operand has 10 states, 10 states have (on average 7.6) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (26), 7 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)