./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--net--ethernet--sis--sis900.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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--net--ethernet--sis--sis900.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 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:44:10,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:44:10,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:44:10,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:44:10,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:44:10,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:44:10,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:44:10,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:44:10,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:44:10,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:44:10,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:44:10,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:44:10,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:44:10,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:44:10,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:44:10,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:44:10,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:44:10,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:44:10,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:44:10,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:44:10,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:44:10,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:44:10,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:44:10,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:44:10,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:44:10,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:44:10,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:44:10,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:44:10,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:44:10,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:44:10,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:44:10,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:44:10,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:44:10,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:44:10,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:44:10,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:44:10,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:44:10,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:44:10,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:44:10,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:44:10,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:44:10,616 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:44:10,651 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:44:10,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:44:10,656 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:44:10,656 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:44:10,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:44:10,657 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:44:10,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:44:10,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:44:10,658 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:44:10,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:44:10,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:44:10,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:44:10,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:44:10,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:44:10,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:44:10,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:44:10,660 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:44:10,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:44:10,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:44:10,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:44:10,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:44:10,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:44:10,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:44:10,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:44:10,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:44:10,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:44:10,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:44:10,662 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:44:10,662 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:44:10,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:44:10,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:44:10,662 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10fde7a37a019b1c929db0077997db096e3fd4889a12d96c2c2befe2c5cd6fdf [2021-12-22 14:44:10,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:44:10,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:44:10,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:44:10,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:44:10,936 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:44:10,937 INFO L432 ainManager$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--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-22 14:44:11,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f42a9e2/69f7f1aefd4b4b1daf6582366fc37d3b/FLAG4ffda7761 [2021-12-22 14:44:11,793 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:44:11,794 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--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-22 14:44:11,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f42a9e2/69f7f1aefd4b4b1daf6582366fc37d3b/FLAG4ffda7761 [2021-12-22 14:44:11,971 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42f42a9e2/69f7f1aefd4b4b1daf6582366fc37d3b [2021-12-22 14:44:11,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:44:11,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:44:11,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:44:11,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:44:11,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:44:11,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:44:11" (1/1) ... [2021-12-22 14:44:11,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e26da2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:11, skipping insertion in model container [2021-12-22 14:44:11,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:44:11" (1/1) ... [2021-12-22 14:44:12,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:44:12,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:44:12,610 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-12-22 14:44:12,610 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-12-22 14:44:12,876 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--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-12-22 14:44:13,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:44:13,764 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:44:13,860 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5272] [2021-12-22 14:44:13,861 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5273-5274] [2021-12-22 14:44:13,876 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--net--ethernet--sis--sis900.ko-entry_point.cil.out.i[161168,161181] [2021-12-22 14:44:14,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:44:14,230 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:44:14,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14 WrapperNode [2021-12-22 14:44:14,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:44:14,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:44:14,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:44:14,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:44:14,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (1/1) ... [2021-12-22 14:44:14,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (1/1) ... [2021-12-22 14:44:14,512 INFO L137 Inliner]: procedures = 281, calls = 1587, calls flagged for inlining = 160, calls inlined = 157, statements flattened = 4353 [2021-12-22 14:44:14,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:44:14,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:44:14,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:44:14,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:44:14,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (1/1) ... [2021-12-22 14:44:14,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (1/1) ... [2021-12-22 14:44:14,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (1/1) ... [2021-12-22 14:44:14,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (1/1) ... [2021-12-22 14:44:14,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (1/1) ... [2021-12-22 14:44:14,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (1/1) ... [2021-12-22 14:44:14,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (1/1) ... [2021-12-22 14:44:14,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:44:14,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:44:14,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:44:14,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:44:14,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (1/1) ... [2021-12-22 14:44:14,755 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:44:14,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:44:14,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:44:14,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:44:14,825 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2021-12-22 14:44:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2021-12-22 14:44:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-22 14:44:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-22 14:44:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-22 14:44:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-22 14:44:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:44:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:44:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-22 14:44:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-22 14:44:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 14:44:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 14:44:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-22 14:44:14,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-22 14:44:14,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 14:44:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 14:44:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:44:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:44:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2021-12-22 14:44:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2021-12-22 14:44:14,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:44:14,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:44:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 14:44:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 14:44:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-22 14:44:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-22 14:44:14,830 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 14:44:14,830 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 14:44:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-12-22 14:44:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-12-22 14:44:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2021-12-22 14:44:14,831 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2021-12-22 14:44:14,831 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-12-22 14:44:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-12-22 14:44:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:44:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:44:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-22 14:44:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-22 14:44:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 14:44:14,832 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 14:44:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-22 14:44:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-22 14:44:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-22 14:44:14,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-22 14:44:14,833 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2021-12-22 14:44:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2021-12-22 14:44:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 14:44:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 14:44:14,834 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-12-22 14:44:14,834 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-12-22 14:44:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-22 14:44:14,835 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-22 14:44:14,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:44:14,836 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-22 14:44:14,836 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-22 14:44:14,836 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-22 14:44:14,837 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-22 14:44:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:44:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-22 14:44:14,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-22 14:44:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-22 14:44:14,837 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-22 14:44:14,837 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-22 14:44:14,838 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-22 14:44:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-22 14:44:14,838 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-22 14:44:14,838 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 14:44:14,839 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 14:44:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-22 14:44:14,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-22 14:44:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-22 14:44:14,839 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2021-12-22 14:44:14,839 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2021-12-22 14:44:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2021-12-22 14:44:14,840 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2021-12-22 14:44:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:44:14,840 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:44:14,840 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2021-12-22 14:44:14,840 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2021-12-22 14:44:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2021-12-22 14:44:14,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2021-12-22 14:44:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 14:44:14,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 14:44:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:44:14,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:44:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-22 14:44:14,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-22 14:44:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-22 14:44:14,842 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-22 14:44:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 14:44:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 14:44:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2021-12-22 14:44:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2021-12-22 14:44:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 14:44:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 14:44:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:44:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:44:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2021-12-22 14:44:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2021-12-22 14:44:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-22 14:44:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-22 14:44:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 14:44:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 14:44:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-22 14:44:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-22 14:44:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2021-12-22 14:44:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2021-12-22 14:44:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:44:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2021-12-22 14:44:14,847 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2021-12-22 14:44:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-12-22 14:44:14,847 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-12-22 14:44:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 14:44:14,848 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 14:44:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 14:44:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 14:44:14,850 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-12-22 14:44:14,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-12-22 14:44:14,851 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:44:14,852 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:44:14,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 14:44:14,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 14:44:14,853 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:44:14,853 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:44:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-22 14:44:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-22 14:44:14,858 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 14:44:14,858 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 14:44:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:44:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-22 14:44:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-22 14:44:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2021-12-22 14:44:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2021-12-22 14:44:14,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:44:14,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:44:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2021-12-22 14:44:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2021-12-22 14:44:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_config [2021-12-22 14:44:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_config [2021-12-22 14:44:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:44:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2021-12-22 14:44:14,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2021-12-22 14:44:14,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:44:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2021-12-22 14:44:14,861 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2021-12-22 14:44:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:44:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-22 14:44:14,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-22 14:44:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-22 14:44:14,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-22 14:44:14,861 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-12-22 14:44:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-12-22 14:44:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-22 14:44:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-22 14:44:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2021-12-22 14:44:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2021-12-22 14:44:14,862 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-22 14:44:14,862 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-22 14:44:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ioctl [2021-12-22 14:44:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ioctl [2021-12-22 14:44:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-22 14:44:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-22 14:44:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 14:44:14,863 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 14:44:14,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:44:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-22 14:44:14,864 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-22 14:44:14,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:44:14,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:44:15,567 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:44:15,569 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:44:15,890 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:44:17,964 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:44:17,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:44:17,979 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 14:44:17,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:44:17 BoogieIcfgContainer [2021-12-22 14:44:17,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:44:17,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:44:17,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:44:17,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:44:17,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:44:11" (1/3) ... [2021-12-22 14:44:17,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a8c621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:44:17, skipping insertion in model container [2021-12-22 14:44:17,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:44:14" (2/3) ... [2021-12-22 14:44:17,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a8c621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:44:17, skipping insertion in model container [2021-12-22 14:44:17,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:44:17" (3/3) ... [2021-12-22 14:44:17,989 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--ethernet--sis--sis900.ko-entry_point.cil.out.i [2021-12-22 14:44:17,993 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:44:17,994 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:44:18,038 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:44:18,043 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:44:18,044 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:44:18,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 1685 states, 1169 states have (on average 1.3250641573994868) internal successors, (1549), 1196 states have internal predecessors, (1549), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) [2021-12-22 14:44:18,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-22 14:44:18,110 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:44:18,110 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:44:18,111 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:44:18,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:44:18,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1357541251, now seen corresponding path program 1 times [2021-12-22 14:44:18,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:44:18,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051240663] [2021-12-22 14:44:18,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:44:18,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:44:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:44:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:44:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:44:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:44:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:44:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:44:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-22 14:44:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 14:44:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:44:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 14:44:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:18,777 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-22 14:44:18,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:44:18,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051240663] [2021-12-22 14:44:18,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051240663] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:44:18,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:44:18,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:44:18,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447251130] [2021-12-22 14:44:18,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:44:18,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:44:18,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:44:18,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:44:18,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:44:18,813 INFO L87 Difference]: Start difference. First operand has 1685 states, 1169 states have (on average 1.3250641573994868) internal successors, (1549), 1196 states have internal predecessors, (1549), 437 states have call successors, (437), 78 states have call predecessors, (437), 77 states have return successors, (430), 426 states have call predecessors, (430), 430 states have call successors, (430) Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:44:25,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:44:25,718 INFO L93 Difference]: Finished difference Result 5294 states and 7735 transitions. [2021-12-22 14:44:25,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 14:44:25,721 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2021-12-22 14:44:25,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:44:25,756 INFO L225 Difference]: With dead ends: 5294 [2021-12-22 14:44:25,757 INFO L226 Difference]: Without dead ends: 3576 [2021-12-22 14:44:25,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:44:25,774 INFO L933 BasicCegarLoop]: 2472 mSDtfsCounter, 4378 mSDsluCounter, 6961 mSDsCounter, 0 mSdLazyCounter, 5083 mSolverCounterSat, 2893 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4690 SdHoareTripleChecker+Valid, 9433 SdHoareTripleChecker+Invalid, 7976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2893 IncrementalHoareTripleChecker+Valid, 5083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-12-22 14:44:25,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4690 Valid, 9433 Invalid, 7976 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2893 Valid, 5083 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2021-12-22 14:44:25,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2021-12-22 14:44:26,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3307. [2021-12-22 14:44:26,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 2300 states have (on average 1.3139130434782609) internal successors, (3022), 2340 states have internal predecessors, (3022), 853 states have call successors, (853), 154 states have call predecessors, (853), 153 states have return successors, (852), 840 states have call predecessors, (852), 852 states have call successors, (852) [2021-12-22 14:44:26,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 4727 transitions. [2021-12-22 14:44:26,053 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 4727 transitions. Word has length 92 [2021-12-22 14:44:26,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:44:26,056 INFO L470 AbstractCegarLoop]: Abstraction has 3307 states and 4727 transitions. [2021-12-22 14:44:26,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:44:26,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 4727 transitions. [2021-12-22 14:44:26,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-22 14:44:26,072 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:44:26,073 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:44:26,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:44:26,074 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:44:26,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:44:26,076 INFO L85 PathProgramCache]: Analyzing trace with hash -454809615, now seen corresponding path program 1 times [2021-12-22 14:44:26,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:44:26,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786428612] [2021-12-22 14:44:26,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:44:26,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:44:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:44:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:44:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:44:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:44:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:44:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:44:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-22 14:44:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 14:44:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:44:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:44:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-22 14:44:26,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:44:26,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786428612] [2021-12-22 14:44:26,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786428612] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:44:26,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:44:26,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:44:26,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548215722] [2021-12-22 14:44:26,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:44:26,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:44:26,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:44:26,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:44:26,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:44:26,422 INFO L87 Difference]: Start difference. First operand 3307 states and 4727 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:44:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:44:32,907 INFO L93 Difference]: Finished difference Result 10419 states and 14995 transitions. [2021-12-22 14:44:32,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 14:44:32,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2021-12-22 14:44:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:44:32,957 INFO L225 Difference]: With dead ends: 10419 [2021-12-22 14:44:32,958 INFO L226 Difference]: Without dead ends: 7129 [2021-12-22 14:44:32,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:44:32,979 INFO L933 BasicCegarLoop]: 2396 mSDtfsCounter, 4361 mSDsluCounter, 6799 mSDsCounter, 0 mSdLazyCounter, 5011 mSolverCounterSat, 2874 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 9195 SdHoareTripleChecker+Invalid, 7885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2874 IncrementalHoareTripleChecker+Valid, 5011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:44:32,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4671 Valid, 9195 Invalid, 7885 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2874 Valid, 5011 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-12-22 14:44:32,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2021-12-22 14:44:33,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 6596. [2021-12-22 14:44:33,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6596 states, 4590 states have (on average 1.3132897603485838) internal successors, (6028), 4669 states have internal predecessors, (6028), 1698 states have call successors, (1698), 308 states have call predecessors, (1698), 307 states have return successors, (1697), 1674 states have call predecessors, (1697), 1697 states have call successors, (1697) [2021-12-22 14:44:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6596 states to 6596 states and 9423 transitions. [2021-12-22 14:44:33,340 INFO L78 Accepts]: Start accepts. Automaton has 6596 states and 9423 transitions. Word has length 93 [2021-12-22 14:44:33,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:44:33,342 INFO L470 AbstractCegarLoop]: Abstraction has 6596 states and 9423 transitions. [2021-12-22 14:44:33,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:44:33,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6596 states and 9423 transitions. [2021-12-22 14:44:33,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-22 14:44:33,351 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:44:33,352 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:44:33,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:44:33,352 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:44:33,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:44:33,353 INFO L85 PathProgramCache]: Analyzing trace with hash 658135424, now seen corresponding path program 1 times [2021-12-22 14:44:33,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:44:33,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468861016] [2021-12-22 14:44:33,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:44:33,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:44:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:44:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:44:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:44:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:44:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:44:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:44:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-22 14:44:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-22 14:44:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-22 14:44:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 14:44:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:33,624 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-22 14:44:33,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:44:33,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468861016] [2021-12-22 14:44:33,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468861016] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:44:33,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:44:33,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:44:33,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992893392] [2021-12-22 14:44:33,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:44:33,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:44:33,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:44:33,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:44:33,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:44:33,628 INFO L87 Difference]: Start difference. First operand 6596 states and 9423 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:44:39,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:44:39,687 INFO L93 Difference]: Finished difference Result 20821 states and 29933 transitions. [2021-12-22 14:44:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 14:44:39,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2021-12-22 14:44:39,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:44:39,769 INFO L225 Difference]: With dead ends: 20821 [2021-12-22 14:44:39,769 INFO L226 Difference]: Without dead ends: 14242 [2021-12-22 14:44:39,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:44:39,810 INFO L933 BasicCegarLoop]: 2363 mSDtfsCounter, 4369 mSDsluCounter, 6712 mSDsCounter, 0 mSdLazyCounter, 4997 mSolverCounterSat, 2906 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4679 SdHoareTripleChecker+Valid, 9075 SdHoareTripleChecker+Invalid, 7903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2906 IncrementalHoareTripleChecker+Valid, 4997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-22 14:44:39,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4679 Valid, 9075 Invalid, 7903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2906 Valid, 4997 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-22 14:44:39,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14242 states. [2021-12-22 14:44:40,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14242 to 13179. [2021-12-22 14:44:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13179 states, 9175 states have (on average 1.3126975476839238) internal successors, (12044), 9331 states have internal predecessors, (12044), 3387 states have call successors, (3387), 617 states have call predecessors, (3387), 616 states have return successors, (3386), 3342 states have call predecessors, (3386), 3386 states have call successors, (3386) [2021-12-22 14:44:40,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13179 states to 13179 states and 18817 transitions. [2021-12-22 14:44:40,440 INFO L78 Accepts]: Start accepts. Automaton has 13179 states and 18817 transitions. Word has length 94 [2021-12-22 14:44:40,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:44:40,442 INFO L470 AbstractCegarLoop]: Abstraction has 13179 states and 18817 transitions. [2021-12-22 14:44:40,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:44:40,444 INFO L276 IsEmpty]: Start isEmpty. Operand 13179 states and 18817 transitions. [2021-12-22 14:44:40,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-22 14:44:40,527 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:44:40,527 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:44:40,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:44:40,528 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:44:40,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:44:40,529 INFO L85 PathProgramCache]: Analyzing trace with hash -302238636, now seen corresponding path program 1 times [2021-12-22 14:44:40,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:44:40,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427240633] [2021-12-22 14:44:40,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:44:40,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:44:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:44:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:44:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:44:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:44:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:44:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:44:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:44:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:44:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:44:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-22 14:44:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-22 14:44:40,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:44:40,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427240633] [2021-12-22 14:44:40,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427240633] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:44:40,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:44:40,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-22 14:44:40,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125334265] [2021-12-22 14:44:40,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:44:40,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:44:40,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:44:40,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:44:40,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:44:40,777 INFO L87 Difference]: Start difference. First operand 13179 states and 18817 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:44:46,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:44:46,434 INFO L93 Difference]: Finished difference Result 41620 states and 59781 transitions. [2021-12-22 14:44:46,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 14:44:46,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2021-12-22 14:44:46,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:44:46,584 INFO L225 Difference]: With dead ends: 41620 [2021-12-22 14:44:46,584 INFO L226 Difference]: Without dead ends: 28458 [2021-12-22 14:44:46,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:44:46,660 INFO L933 BasicCegarLoop]: 2363 mSDtfsCounter, 4372 mSDsluCounter, 6706 mSDsCounter, 0 mSdLazyCounter, 4994 mSolverCounterSat, 2904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4682 SdHoareTripleChecker+Valid, 9069 SdHoareTripleChecker+Invalid, 7898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2904 IncrementalHoareTripleChecker+Valid, 4994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:44:46,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4682 Valid, 9069 Invalid, 7898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2904 Valid, 4994 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-22 14:44:46,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28458 states. [2021-12-22 14:44:47,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28458 to 26343. [2021-12-22 14:44:47,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26343 states, 18345 states have (on average 1.3120741346415916) internal successors, (24070), 18653 states have internal predecessors, (24070), 6762 states have call successors, (6762), 1236 states have call predecessors, (6762), 1235 states have return successors, (6761), 6677 states have call predecessors, (6761), 6761 states have call successors, (6761) [2021-12-22 14:44:48,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26343 states to 26343 states and 37593 transitions. [2021-12-22 14:44:48,009 INFO L78 Accepts]: Start accepts. Automaton has 26343 states and 37593 transitions. Word has length 95 [2021-12-22 14:44:48,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:44:48,010 INFO L470 AbstractCegarLoop]: Abstraction has 26343 states and 37593 transitions. [2021-12-22 14:44:48,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:44:48,011 INFO L276 IsEmpty]: Start isEmpty. Operand 26343 states and 37593 transitions. [2021-12-22 14:44:48,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-22 14:44:48,021 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:44:48,021 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-22 14:44:48,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:44:48,021 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:44:48,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:44:48,022 INFO L85 PathProgramCache]: Analyzing trace with hash -761982270, now seen corresponding path program 1 times [2021-12-22 14:44:48,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:44:48,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415376008] [2021-12-22 14:44:48,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:44:48,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:44:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:44:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:44:48,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:44:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:44:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:44:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:44:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-22 14:44:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-22 14:44:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-22 14:44:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 14:44:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-22 14:44:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:48,206 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-22 14:44:48,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:44:48,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415376008] [2021-12-22 14:44:48,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415376008] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:44:48,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:44:48,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:44:48,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623708319] [2021-12-22 14:44:48,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:44:48,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:44:48,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:44:48,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:44:48,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:44:48,209 INFO L87 Difference]: Start difference. First operand 26343 states and 37593 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:44:53,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:44:53,156 INFO L93 Difference]: Finished difference Result 76739 states and 109734 transitions. [2021-12-22 14:44:53,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:44:53,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2021-12-22 14:44:53,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:44:53,485 INFO L225 Difference]: With dead ends: 76739 [2021-12-22 14:44:53,486 INFO L226 Difference]: Without dead ends: 50413 [2021-12-22 14:44:53,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:44:53,771 INFO L933 BasicCegarLoop]: 2304 mSDtfsCounter, 3791 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 2590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4023 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 5264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2590 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-22 14:44:53,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4023 Valid, 5357 Invalid, 5264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2590 Valid, 2674 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-12-22 14:44:53,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50413 states. [2021-12-22 14:44:55,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50413 to 46845. [2021-12-22 14:44:55,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46845 states, 32715 states have (on average 1.3081461103469356) internal successors, (42796), 33313 states have internal predecessors, (42796), 11823 states have call successors, (11823), 2323 states have call predecessors, (11823), 2306 states have return successors, (11822), 11622 states have call predecessors, (11822), 11822 states have call successors, (11822) [2021-12-22 14:44:56,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46845 states to 46845 states and 66441 transitions. [2021-12-22 14:44:56,271 INFO L78 Accepts]: Start accepts. Automaton has 46845 states and 66441 transitions. Word has length 106 [2021-12-22 14:44:56,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:44:56,290 INFO L470 AbstractCegarLoop]: Abstraction has 46845 states and 66441 transitions. [2021-12-22 14:44:56,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:44:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand 46845 states and 66441 transitions. [2021-12-22 14:44:56,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-22 14:44:56,294 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:44:56,294 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:44:56,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 14:44:56,295 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:44:56,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:44:56,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1559019951, now seen corresponding path program 1 times [2021-12-22 14:44:56,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:44:56,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977898187] [2021-12-22 14:44:56,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:44:56,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:44:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:44:56,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:44:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:44:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:44:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:44:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:44:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-22 14:44:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:44:56,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:44:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 14:44:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-22 14:44:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:56,701 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-22 14:44:56,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:44:56,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977898187] [2021-12-22 14:44:56,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977898187] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 14:44:56,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647556596] [2021-12-22 14:44:56,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:44:56,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 14:44:56,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:44:56,704 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) [2021-12-22 14:44:56,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 14:44:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:44:57,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-22 14:44:57,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 14:44:57,661 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-22 14:44:57,661 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 14:44:57,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647556596] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:44:57,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-22 14:44:57,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2021-12-22 14:44:57,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621090615] [2021-12-22 14:44:57,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:44:57,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-22 14:44:57,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:44:57,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-22 14:44:57,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-12-22 14:44:57,663 INFO L87 Difference]: Start difference. First operand 46845 states and 66441 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:44:59,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:44:59,842 INFO L93 Difference]: Finished difference Result 117365 states and 166419 transitions. [2021-12-22 14:44:59,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-22 14:44:59,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2021-12-22 14:44:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted.