./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.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 c59d24ca7e400c1a8a00858a94bd019ea47bce8fc36becb9b508e062f91a0ddc --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 12:56:08,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:56:08,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:56:08,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:56:08,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:56:08,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:56:08,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:56:08,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:56:08,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:56:08,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:56:08,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:56:08,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:56:08,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:56:08,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:56:08,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:56:08,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:56:08,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:56:08,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:56:08,756 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:56:08,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:56:08,761 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:56:08,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:56:08,762 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:56:08,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:56:08,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:56:08,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:56:08,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:56:08,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:56:08,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:56:08,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:56:08,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:56:08,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:56:08,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:56:08,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:56:08,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:56:08,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:56:08,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:56:08,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:56:08,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:56:08,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:56:08,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:56:08,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:56:08,781 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:56:08,804 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:56:08,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:56:08,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:56:08,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:56:08,805 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:56:08,805 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:56:08,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:56:08,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:56:08,806 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:56:08,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:56:08,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:56:08,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:56:08,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:56:08,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:56:08,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:56:08,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:56:08,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:56:08,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:56:08,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:56:08,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:56:08,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:56:08,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:56:08,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:56:08,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:56:08,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:56:08,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:56:08,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:56:08,810 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:56:08,810 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:56:08,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:56:08,810 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c59d24ca7e400c1a8a00858a94bd019ea47bce8fc36becb9b508e062f91a0ddc [2022-07-12 12:56:09,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:56:09,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:56:09,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:56:09,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:56:09,028 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:56:09,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2022-07-12 12:56:09,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4907deb1c/0fd6890a46ec4c6e9727bb90a342f213/FLAGdd8c29543 [2022-07-12 12:56:09,847 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:56:09,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2022-07-12 12:56:09,882 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4907deb1c/0fd6890a46ec4c6e9727bb90a342f213/FLAGdd8c29543 [2022-07-12 12:56:10,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4907deb1c/0fd6890a46ec4c6e9727bb90a342f213 [2022-07-12 12:56:10,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:56:10,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:56:10,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:56:10,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:56:10,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:56:10,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:56:10" (1/1) ... [2022-07-12 12:56:10,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1198ba7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:10, skipping insertion in model container [2022-07-12 12:56:10,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:56:10" (1/1) ... [2022-07-12 12:56:10,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:56:10,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:56:10,873 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4050] [2022-07-12 12:56:10,874 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4051-4052] [2022-07-12 12:56:11,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i[126730,126743] [2022-07-12 12:56:11,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:56:11,965 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:56:12,024 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4050] [2022-07-12 12:56:12,025 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4051-4052] [2022-07-12 12:56:12,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i[126730,126743] [2022-07-12 12:56:12,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:56:12,402 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:56:12,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12 WrapperNode [2022-07-12 12:56:12,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:56:12,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:56:12,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:56:12,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:56:12,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (1/1) ... [2022-07-12 12:56:12,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (1/1) ... [2022-07-12 12:56:12,714 INFO L137 Inliner]: procedures = 349, calls = 4496, calls flagged for inlining = 165, calls inlined = 163, statements flattened = 8223 [2022-07-12 12:56:12,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:56:12,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:56:12,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:56:12,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:56:12,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (1/1) ... [2022-07-12 12:56:12,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (1/1) ... [2022-07-12 12:56:12,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (1/1) ... [2022-07-12 12:56:12,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (1/1) ... [2022-07-12 12:56:12,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (1/1) ... [2022-07-12 12:56:13,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (1/1) ... [2022-07-12 12:56:13,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (1/1) ... [2022-07-12 12:56:13,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:56:13,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:56:13,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:56:13,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:56:13,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (1/1) ... [2022-07-12 12:56:13,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:56:13,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:56:13,120 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) [2022-07-12 12:56:13,148 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 [2022-07-12 12:56:13,165 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_chars [2022-07-12 12:56:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_chars [2022-07-12 12:56:13,166 INFO L130 BoogieDeclarations]: Found specification of procedure uart_poll_timeout [2022-07-12 12:56:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_poll_timeout [2022-07-12 12:56:13,166 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_on [2022-07-12 12:56:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_on [2022-07-12 12:56:13,166 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_rx_chars [2022-07-12 12:56:13,166 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_rx_chars [2022-07-12 12:56:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_out_sync [2022-07-12 12:56:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_out_sync [2022-07-12 12:56:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_do_pm [2022-07-12 12:56:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_do_pm [2022-07-12 12:56:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure serial_dl_write [2022-07-12 12:56:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_dl_write [2022-07-12 12:56:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_read_divisor_id [2022-07-12 12:56:13,167 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_read_divisor_id [2022-07-12 12:56:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 12:56:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 12:56:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_mctrl [2022-07-12 12:56:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_mctrl [2022-07-12 12:56:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-12 12:56:13,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-12 12:56:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_device [2022-07-12 12:56:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_device [2022-07-12 12:56:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_port [2022-07-12 12:56:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_port [2022-07-12 12:56:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:56:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:56:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_stop_tx [2022-07-12 12:56:13,169 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_stop_tx [2022-07-12 12:56:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure uart_unregister_driver [2022-07-12 12:56:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_unregister_driver [2022-07-12 12:56:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-07-12 12:56:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-07-12 12:56:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_prep_slave_single [2022-07-12 12:56:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_prep_slave_single [2022-07-12 12:56:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2022-07-12 12:56:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2022-07-12 12:56:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_device_control [2022-07-12 12:56:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_device_control [2022-07-12 12:56:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:56:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:56:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_5 [2022-07-12 12:56:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_5 [2022-07-12 12:56:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:56:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:56:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_start_tx [2022-07-12 12:56:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_start_tx [2022-07-12 12:56:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-12 12:56:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-12 12:56:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 12:56:13,173 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 12:56:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_16550a [2022-07-12 12:56:13,174 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_16550a [2022-07-12 12:56:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 12:56:13,174 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 12:56:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_tx_complete [2022-07-12 12:56:13,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_tx_complete [2022-07-12 12:56:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-12 12:56:13,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-12 12:56:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure dma_release_channel [2022-07-12 12:56:13,175 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_release_channel [2022-07-12 12:56:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure check_name [2022-07-12 12:56:13,175 INFO L138 BoogieDeclarations]: Found implementation of procedure check_name [2022-07-12 12:56:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-12 12:56:13,175 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-12 12:56:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure serial_in [2022-07-12 12:56:13,175 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_in [2022-07-12 12:56:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_handle_irq [2022-07-12 12:56:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_handle_irq [2022-07-12 12:56:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:56:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure broken_efr [2022-07-12 12:56:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure broken_efr [2022-07-12 12:56:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_submit [2022-07-12 12:56:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_submit [2022-07-12 12:56:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_modem_status [2022-07-12 12:56:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_modem_status [2022-07-12 12:56:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_startup [2022-07-12 12:56:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_startup [2022-07-12 12:56:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2022-07-12 12:56:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2022-07-12 12:56:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_pnp_exit [2022-07-12 12:56:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_pnp_exit [2022-07-12 12:56:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure uart_suspend_port [2022-07-12 12:56:13,177 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_suspend_port [2022-07-12 12:56:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:56:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_ldisc [2022-07-12 12:56:13,178 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_ldisc [2022-07-12 12:56:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure uart_add_one_port [2022-07-12 12:56:13,178 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_add_one_port [2022-07-12 12:56:13,178 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_port_size [2022-07-12 12:56:13,178 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_port_size [2022-07-12 12:56:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-12 12:56:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-12 12:56:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-12 12:56:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-12 12:56:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-07-12 12:56:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_dma [2022-07-12 12:56:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_dma [2022-07-12 12:56:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_put_poll_char [2022-07-12 12:56:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_put_poll_char [2022-07-12 12:56:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_dma [2022-07-12 12:56:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_dma [2022-07-12 12:56:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:56:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_tx_empty [2022-07-12 12:56:13,181 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_tx_empty [2022-07-12 12:56:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:56:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_out [2022-07-12 12:56:13,181 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_out [2022-07-12 12:56:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure disable_rsa [2022-07-12 12:56:13,181 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_rsa [2022-07-12 12:56:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_clear_fifos [2022-07-12 12:56:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_clear_fifos [2022-07-12 12:56:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure serial_out [2022-07-12 12:56:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_out [2022-07-12 12:56:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure serial_icr_write [2022-07-12 12:56:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_icr_write [2022-07-12 12:56:13,184 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-12 12:56:13,184 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-12 12:56:13,185 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-07-12 12:56:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-07-12 12:56:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_get_poll_char [2022-07-12 12:56:13,186 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_get_poll_char [2022-07-12 12:56:13,186 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_probe [2022-07-12 12:56:13,190 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_probe [2022-07-12 12:56:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure serial_do_unlink [2022-07-12 12:56:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_do_unlink [2022-07-12 12:56:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_termios [2022-07-12 12:56:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_termios [2022-07-12 12:56:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-12 12:56:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-12 12:56:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_unregister_port [2022-07-12 12:56:13,191 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_unregister_port [2022-07-12 12:56:13,191 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_stop_rx [2022-07-12 12:56:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_stop_rx [2022-07-12 12:56:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-12 12:56:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-12 12:56:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_rsa_resource [2022-07-12 12:56:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_rsa_resource [2022-07-12 12:56:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-12 12:56:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-12 12:56:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_isa_init_ports [2022-07-12 12:56:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_isa_init_ports [2022-07-12 12:56:13,192 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-12 12:56:13,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-12 12:56:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-07-12 12:56:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-07-12 12:56:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure is_omap1_8250 [2022-07-12 12:56:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure is_omap1_8250 [2022-07-12 12:56:13,193 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2022-07-12 12:56:13,193 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2022-07-12 12:56:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_verify_port [2022-07-12 12:56:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_verify_port [2022-07-12 12:56:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-12 12:56:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-12 12:56:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2022-07-12 12:56:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2022-07-12 12:56:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2022-07-12 12:56:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2022-07-12 12:56:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure set_io_from_upio [2022-07-12 12:56:13,194 INFO L138 BoogieDeclarations]: Found implementation of procedure set_io_from_upio [2022-07-12 12:56:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2022-07-12 12:56:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2022-07-12 12:56:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-12 12:56:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-12 12:56:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure uart_remove_one_port [2022-07-12 12:56:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_remove_one_port [2022-07-12 12:56:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 12:56:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_suspend_port [2022-07-12 12:56:13,195 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_suspend_port [2022-07-12 12:56:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_dma [2022-07-12 12:56:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_dma [2022-07-12 12:56:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-12 12:56:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-12 12:56:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_get_mctrl [2022-07-12 12:56:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_get_mctrl [2022-07-12 12:56:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure probe_irq_off [2022-07-12 12:56:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_irq_off [2022-07-12 12:56:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_rsa_resource [2022-07-12 12:56:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_rsa_resource [2022-07-12 12:56:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_request_slave_channel_compat [2022-07-12 12:56:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_request_slave_channel_compat [2022-07-12 12:56:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_std_resource [2022-07-12 12:56:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_std_resource [2022-07-12 12:56:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_tx_status [2022-07-12 12:56:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_tx_status [2022-07-12 12:56:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-07-12 12:56:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-07-12 12:56:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_in [2022-07-12 12:56:13,197 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_in [2022-07-12 12:56:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 12:56:13,197 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_type [2022-07-12 12:56:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_type [2022-07-12 12:56:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_register_8250_port [2022-07-12 12:56:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_register_8250_port [2022-07-12 12:56:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure uart_write_wakeup [2022-07-12 12:56:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_write_wakeup [2022-07-12 12:56:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-12 12:56:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-12 12:56:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:56:13,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:56:13,198 INFO L130 BoogieDeclarations]: Found specification of procedure serial_icr_read [2022-07-12 12:56:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_icr_read [2022-07-12 12:56:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_break_ctl [2022-07-12 12:56:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_break_ctl [2022-07-12 12:56:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:56:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_pm [2022-07-12 12:56:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_pm [2022-07-12 12:56:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-07-12 12:56:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-07-12 12:56:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_do_set_termios [2022-07-12 12:56:13,199 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_do_set_termios [2022-07-12 12:56:13,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:56:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure uart_tx_stopped [2022-07-12 12:56:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_tx_stopped [2022-07-12 12:56:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_xmitr [2022-07-12 12:56:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_xmitr [2022-07-12 12:56:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig [2022-07-12 12:56:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig [2022-07-12 12:56:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure serial_dl_read [2022-07-12 12:56:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_dl_read [2022-07-12 12:56:13,200 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-12 12:56:13,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-12 12:56:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:56:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-12 12:56:13,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-12 12:56:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-07-12 12:56:13,201 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-07-12 12:56:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:56:13,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-12 12:56:13,201 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-12 12:56:13,202 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-12 12:56:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure serial_pnp_remove [2022-07-12 12:56:13,202 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_pnp_remove [2022-07-12 12:56:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-07-12 12:56:13,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-07-12 12:56:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure uart_handle_break [2022-07-12 12:56:13,202 INFO L138 BoogieDeclarations]: Found implementation of procedure uart_handle_break [2022-07-12 12:56:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-12 12:56:13,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-12 12:56:13,202 INFO L130 BoogieDeclarations]: Found specification of procedure serial_index [2022-07-12 12:56:13,203 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_index [2022-07-12 12:56:13,205 INFO L130 BoogieDeclarations]: Found specification of procedure __dma_rx_complete [2022-07-12 12:56:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __dma_rx_complete [2022-07-12 12:56:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure dma_async_issue_pending [2022-07-12 12:56:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_async_issue_pending [2022-07-12 12:56:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure __stop_tx [2022-07-12 12:56:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __stop_tx [2022-07-12 12:56:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2022-07-12 12:56:13,206 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2022-07-12 12:56:13,206 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_config_port [2022-07-12 12:56:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_config_port [2022-07-12 12:56:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-12 12:56:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-12 12:56:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 12:56:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-07-12 12:56:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_resume [2022-07-12 12:56:13,208 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_resume [2022-07-12 12:56:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_shutdown [2022-07-12 12:56:13,208 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_shutdown [2022-07-12 12:56:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~X~$Pointer$~TO~VOID [2022-07-12 12:56:13,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~X~$Pointer$~TO~VOID [2022-07-12 12:56:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure autoconfig_has_efr [2022-07-12 12:56:13,208 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconfig_has_efr [2022-07-12 12:56:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure __enable_rsa [2022-07-12 12:56:13,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __enable_rsa [2022-07-12 12:56:13,208 INFO L130 BoogieDeclarations]: Found specification of procedure serial_pnp_resume [2022-07-12 12:56:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_pnp_resume [2022-07-12 12:56:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_request_std_resource [2022-07-12 12:56:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_request_std_resource [2022-07-12 12:56:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-07-12 12:56:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-07-12 12:56:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_slave_config [2022-07-12 12:56:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_slave_config [2022-07-12 12:56:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_rx_dma [2022-07-12 12:56:13,209 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_rx_dma [2022-07-12 12:56:13,209 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-12 12:56:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-12 12:56:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-07-12 12:56:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-07-12 12:56:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_resume_port [2022-07-12 12:56:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_resume_port [2022-07-12 12:56:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure ns16550a_goto_highspeed [2022-07-12 12:56:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ns16550a_goto_highspeed [2022-07-12 12:56:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure size_fifo [2022-07-12 12:56:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure size_fifo [2022-07-12 12:56:13,210 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_drvdata [2022-07-12 12:56:13,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_drvdata [2022-07-12 12:56:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_remove [2022-07-12 12:56:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_remove [2022-07-12 12:56:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 12:56:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_release_port [2022-07-12 12:56:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_release_port [2022-07-12 12:56:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-07-12 12:56:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-07-12 12:56:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_enable_ms [2022-07-12 12:56:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_enable_ms [2022-07-12 12:56:13,211 INFO L130 BoogieDeclarations]: Found specification of procedure dmaengine_terminate_all [2022-07-12 12:56:13,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dmaengine_terminate_all [2022-07-12 12:56:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2022-07-12 12:56:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2022-07-12 12:56:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_set_sleep [2022-07-12 12:56:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_set_sleep [2022-07-12 12:56:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure serial8250_init_fixed_type_port [2022-07-12 12:56:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure serial8250_init_fixed_type_port [2022-07-12 12:56:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:56:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:56:13,212 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2022-07-12 12:56:13,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2022-07-12 12:56:13,936 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:56:13,938 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:56:14,491 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 12:56:29,326 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:56:29,348 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:56:29,348 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 12:56:29,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:56:29 BoogieIcfgContainer [2022-07-12 12:56:29,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:56:29,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:56:29,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:56:29,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:56:29,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:56:10" (1/3) ... [2022-07-12 12:56:29,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5f2781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:56:29, skipping insertion in model container [2022-07-12 12:56:29,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:56:12" (2/3) ... [2022-07-12 12:56:29,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5f2781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:56:29, skipping insertion in model container [2022-07-12 12:56:29,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:56:29" (3/3) ... [2022-07-12 12:56:29,358 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--serial--8250--8250.ko-entry_point.cil.out.i [2022-07-12 12:56:29,368 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:56:29,369 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:56:29,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:56:29,457 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@312c789a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7b1f41d1 [2022-07-12 12:56:29,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:56:29,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 2769 states, 1933 states have (on average 1.412312467666839) internal successors, (2730), 2025 states have internal predecessors, (2730), 687 states have call successors, (687), 148 states have call predecessors, (687), 147 states have return successors, (680), 652 states have call predecessors, (680), 680 states have call successors, (680) [2022-07-12 12:56:29,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-12 12:56:29,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:56:29,504 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:56:29,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:56:29,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:56:29,507 INFO L85 PathProgramCache]: Analyzing trace with hash 409351273, now seen corresponding path program 1 times [2022-07-12 12:56:29,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:56:29,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228688040] [2022-07-12 12:56:29,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:56:29,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:56:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:56:30,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:56:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:56:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:56:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 12:56:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 12:56:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:56:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:56:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 12:56:30,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:56:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:56:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 12:56:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:56:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:56:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-12 12:56:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:56:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:56:30,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 12:56:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:56:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-12 12:56:30,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:56:30,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228688040] [2022-07-12 12:56:30,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228688040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:56:30,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:56:30,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 12:56:30,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735719722] [2022-07-12 12:56:30,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:56:30,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 12:56:30,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:56:30,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 12:56:30,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 12:56:30,710 INFO L87 Difference]: Start difference. First operand has 2769 states, 1933 states have (on average 1.412312467666839) internal successors, (2730), 2025 states have internal predecessors, (2730), 687 states have call successors, (687), 148 states have call predecessors, (687), 147 states have return successors, (680), 652 states have call predecessors, (680), 680 states have call successors, (680) Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 12:56:34,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:36,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:40,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:42,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:49,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:51,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:53,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:55,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:56:59,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:03,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:06,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:08,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:10,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:12,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:13,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:15,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:57:15,045 INFO L93 Difference]: Finished difference Result 8782 states and 13962 transitions. [2022-07-12 12:57:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 12:57:15,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 163 [2022-07-12 12:57:15,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:57:15,098 INFO L225 Difference]: With dead ends: 8782 [2022-07-12 12:57:15,098 INFO L226 Difference]: Without dead ends: 5963 [2022-07-12 12:57:15,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-07-12 12:57:15,123 INFO L413 NwaCegarLoop]: 4565 mSDtfsCounter, 6531 mSDsluCounter, 6551 mSDsCounter, 0 mSdLazyCounter, 6376 mSolverCounterSat, 3583 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6964 SdHoareTripleChecker+Valid, 11116 SdHoareTripleChecker+Invalid, 9970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3583 IncrementalHoareTripleChecker+Valid, 6376 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2022-07-12 12:57:15,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6964 Valid, 11116 Invalid, 9970 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3583 Valid, 6376 Invalid, 11 Unknown, 0 Unchecked, 43.5s Time] [2022-07-12 12:57:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5963 states. [2022-07-12 12:57:15,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5963 to 4648. [2022-07-12 12:57:15,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4648 states, 3284 states have (on average 1.3376979293544458) internal successors, (4393), 3418 states have internal predecessors, (4393), 1090 states have call successors, (1090), 271 states have call predecessors, (1090), 273 states have return successors, (1102), 1046 states have call predecessors, (1102), 1089 states have call successors, (1102) [2022-07-12 12:57:15,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4648 states to 4648 states and 6585 transitions. [2022-07-12 12:57:15,476 INFO L78 Accepts]: Start accepts. Automaton has 4648 states and 6585 transitions. Word has length 163 [2022-07-12 12:57:15,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:57:15,477 INFO L495 AbstractCegarLoop]: Abstraction has 4648 states and 6585 transitions. [2022-07-12 12:57:15,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 12:57:15,478 INFO L276 IsEmpty]: Start isEmpty. Operand 4648 states and 6585 transitions. [2022-07-12 12:57:15,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-12 12:57:15,500 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:57:15,501 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:57:15,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 12:57:15,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:57:15,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:57:15,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1883964481, now seen corresponding path program 1 times [2022-07-12 12:57:15,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:57:15,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096817098] [2022-07-12 12:57:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:57:15,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:57:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:57:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:57:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:57:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:57:16,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 12:57:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 12:57:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:57:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:57:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 12:57:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:57:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:57:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 12:57:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:57:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:57:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 12:57:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:57:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:57:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-12 12:57:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-12 12:57:16,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:57:16,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096817098] [2022-07-12 12:57:16,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096817098] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:57:16,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443279540] [2022-07-12 12:57:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:57:16,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:57:16,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:57:16,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 12:57:16,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 12:57:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:18,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 8209 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 12:57:18,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:57:18,319 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-07-12 12:57:18,359 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-12 12:57:18,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:57:18,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443279540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:57:18,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:57:18,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 17 [2022-07-12 12:57:18,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916196460] [2022-07-12 12:57:18,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:57:18,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 12:57:18,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:57:18,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 12:57:18,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2022-07-12 12:57:18,362 INFO L87 Difference]: Start difference. First operand 4648 states and 6585 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 12:57:21,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:23,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:25,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:27,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:30,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:31,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:33,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:35,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:37,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:39,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:42,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:44,046 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:45,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:57:45,333 INFO L93 Difference]: Finished difference Result 9293 states and 13211 transitions. [2022-07-12 12:57:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:57:45,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 167 [2022-07-12 12:57:45,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:57:45,356 INFO L225 Difference]: With dead ends: 9293 [2022-07-12 12:57:45,356 INFO L226 Difference]: Without dead ends: 4656 [2022-07-12 12:57:45,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 201 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-12 12:57:45,372 INFO L413 NwaCegarLoop]: 3933 mSDtfsCounter, 1 mSDsluCounter, 10948 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14881 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2022-07-12 12:57:45,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14881 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 862 Invalid, 11 Unknown, 0 Unchecked, 26.6s Time] [2022-07-12 12:57:45,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2022-07-12 12:57:45,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4656. [2022-07-12 12:57:45,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3292 states have (on average 1.3374848116646416) internal successors, (4403), 3426 states have internal predecessors, (4403), 1090 states have call successors, (1090), 271 states have call predecessors, (1090), 273 states have return successors, (1102), 1046 states have call predecessors, (1102), 1089 states have call successors, (1102) [2022-07-12 12:57:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6595 transitions. [2022-07-12 12:57:45,527 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6595 transitions. Word has length 167 [2022-07-12 12:57:45,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:57:45,528 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 6595 transitions. [2022-07-12 12:57:45,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-12 12:57:45,528 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6595 transitions. [2022-07-12 12:57:45,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-12 12:57:45,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:57:45,542 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:57:45,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-12 12:57:45,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:57:45,760 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:57:45,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:57:45,760 INFO L85 PathProgramCache]: Analyzing trace with hash -106106101, now seen corresponding path program 1 times [2022-07-12 12:57:45,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:57:45,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032045814] [2022-07-12 12:57:45,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:57:45,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:57:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:57:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:57:46,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:57:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:57:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 12:57:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 12:57:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:57:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:57:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 12:57:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:57:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:57:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 12:57:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:57:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:57:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 12:57:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:57:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 12:57:46,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 12:57:46,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-12 12:57:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-12 12:57:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-12 12:57:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:46,677 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-07-12 12:57:46,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:57:46,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032045814] [2022-07-12 12:57:46,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032045814] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 12:57:46,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741978574] [2022-07-12 12:57:46,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:57:46,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 12:57:46,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:57:46,679 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 12:57:46,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 12:57:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:57:48,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 8352 conjuncts, 59 conjunts are in the unsatisfiable core [2022-07-12 12:57:48,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 12:57:48,513 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-07-12 12:57:48,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 12:57:48,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741978574] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:57:48,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 12:57:48,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 15 [2022-07-12 12:57:48,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947716002] [2022-07-12 12:57:48,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:57:48,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:57:48,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:57:48,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:57:48,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-07-12 12:57:48,514 INFO L87 Difference]: Start difference. First operand 4656 states and 6595 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 12:57:51,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:57:54,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:00,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:02,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:04,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:58:04,309 INFO L93 Difference]: Finished difference Result 10743 states and 16274 transitions. [2022-07-12 12:58:04,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:58:04,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 187 [2022-07-12 12:58:04,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:58:04,357 INFO L225 Difference]: With dead ends: 10743 [2022-07-12 12:58:04,357 INFO L226 Difference]: Without dead ends: 10740 [2022-07-12 12:58:04,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 229 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-07-12 12:58:04,363 INFO L413 NwaCegarLoop]: 5605 mSDtfsCounter, 6128 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 4327 mSolverCounterSat, 2472 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6639 SdHoareTripleChecker+Valid, 10281 SdHoareTripleChecker+Invalid, 6803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2472 IncrementalHoareTripleChecker+Valid, 4327 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:58:04,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6639 Valid, 10281 Invalid, 6803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2472 Valid, 4327 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2022-07-12 12:58:04,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10740 states. [2022-07-12 12:58:04,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10740 to 10300. [2022-07-12 12:58:04,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10300 states, 7234 states have (on average 1.33218136577274) internal successors, (9637), 7510 states have internal predecessors, (9637), 2425 states have call successors, (2425), 524 states have call predecessors, (2425), 640 states have return successors, (3499), 2454 states have call predecessors, (3499), 2424 states have call successors, (3499) [2022-07-12 12:58:04,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10300 states to 10300 states and 15561 transitions. [2022-07-12 12:58:04,881 INFO L78 Accepts]: Start accepts. Automaton has 10300 states and 15561 transitions. Word has length 187 [2022-07-12 12:58:04,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:58:04,882 INFO L495 AbstractCegarLoop]: Abstraction has 10300 states and 15561 transitions. [2022-07-12 12:58:04,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-12 12:58:04,883 INFO L276 IsEmpty]: Start isEmpty. Operand 10300 states and 15561 transitions. [2022-07-12 12:58:04,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-12 12:58:04,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:58:04,912 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:58:04,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 12:58:05,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-12 12:58:05,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:58:05,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:58:05,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1563417886, now seen corresponding path program 1 times [2022-07-12 12:58:05,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:58:05,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856149661] [2022-07-12 12:58:05,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:58:05,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:58:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:58:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:58:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:58:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:58:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 12:58:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 12:58:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 12:58:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:58:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 12:58:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:58:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 12:58:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:58:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-12 12:58:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:58:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:58:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-12 12:58:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-07-12 12:58:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-12 12:58:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-12 12:58:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:58:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-12 12:58:05,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:58:05,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856149661] [2022-07-12 12:58:05,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856149661] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:58:05,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:58:05,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 12:58:05,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464140910] [2022-07-12 12:58:05,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:58:05,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 12:58:05,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:58:05,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 12:58:05,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-12 12:58:05,726 INFO L87 Difference]: Start difference. First operand 10300 states and 15561 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (22), 8 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 12:58:13,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:14,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:16,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:17,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:19,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:22,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:25,139 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:27,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:29,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:32,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:34,138 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:44,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:48,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:50,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:58:52,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:02,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:04,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:06,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:08,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:10,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:12,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:15,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:17,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:19,643 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:21,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:23,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:25,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:29,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:35,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:39,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:41,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 12:59:49,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:59:49,029 INFO L93 Difference]: Finished difference Result 37752 states and 67247 transitions. [2022-07-12 12:59:49,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-12 12:59:49,032 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (22), 8 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 221 [2022-07-12 12:59:49,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:59:49,183 INFO L225 Difference]: With dead ends: 37752 [2022-07-12 12:59:49,183 INFO L226 Difference]: Without dead ends: 27463 [2022-07-12 12:59:49,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=207, Invalid=443, Unknown=0, NotChecked=0, Total=650 [2022-07-12 12:59:49,251 INFO L413 NwaCegarLoop]: 5243 mSDtfsCounter, 12758 mSDsluCounter, 17363 mSDsCounter, 0 mSdLazyCounter, 25219 mSolverCounterSat, 8504 mSolverCounterUnsat, 26 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13245 SdHoareTripleChecker+Valid, 22606 SdHoareTripleChecker+Invalid, 33749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8504 IncrementalHoareTripleChecker+Valid, 25219 IncrementalHoareTripleChecker+Invalid, 26 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 101.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:59:49,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13245 Valid, 22606 Invalid, 33749 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8504 Valid, 25219 Invalid, 26 Unknown, 0 Unchecked, 101.3s Time] [2022-07-12 12:59:49,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27463 states. [2022-07-12 12:59:50,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27463 to 22517. [2022-07-12 12:59:50,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22517 states, 15790 states have (on average 1.3262191260291323) internal successors, (20941), 16346 states have internal predecessors, (20941), 5273 states have call successors, (5273), 1051 states have call predecessors, (5273), 1453 states have return successors, (10802), 5531 states have call predecessors, (10802), 5272 states have call successors, (10802) [2022-07-12 12:59:50,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22517 states to 22517 states and 37016 transitions. [2022-07-12 12:59:50,800 INFO L78 Accepts]: Start accepts. Automaton has 22517 states and 37016 transitions. Word has length 221 [2022-07-12 12:59:50,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:59:50,800 INFO L495 AbstractCegarLoop]: Abstraction has 22517 states and 37016 transitions. [2022-07-12 12:59:50,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (22), 8 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 12:59:50,801 INFO L276 IsEmpty]: Start isEmpty. Operand 22517 states and 37016 transitions. [2022-07-12 12:59:50,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-12 12:59:50,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:59:50,840 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 12:59:50,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 12:59:50,840 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:59:50,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:59:50,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2048472229, now seen corresponding path program 1 times [2022-07-12 12:59:50,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:59:50,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110684318] [2022-07-12 12:59:50,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:59:50,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:59:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:59:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 12:59:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:59:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:59:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 12:59:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:59:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 12:59:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 12:59:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:59:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:59:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:59:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 12:59:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:59:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:59:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:59:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 12:59:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:59:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:59:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:59:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-12 12:59:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:59:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 12:59:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:59:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-12 12:59:51,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-12 12:59:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 12:59:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-12 12:59:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:59:51,657 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-12 12:59:51,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:59:51,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110684318] [2022-07-12 12:59:51,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110684318] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:59:51,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:59:51,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 12:59:51,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612604592] [2022-07-12 12:59:51,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:59:51,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 12:59:51,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:59:51,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 12:59:51,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-12 12:59:51,659 INFO L87 Difference]: Start difference. First operand 22517 states and 37016 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 4 states have internal predecessors, (110), 3 states have call successors, (22), 8 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 12:59:57,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:01,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:04,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:06,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:08,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:10,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:23,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:25,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:27,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:00:31,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []