./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.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 fd18c623be1f9191aaeb26a7b3c18eeb579e4f661e34cc28939d56ae6edd64a3 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:43:32,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:43:32,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:43:32,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:43:32,682 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:43:32,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:43:32,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:43:32,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:43:32,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:43:32,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:43:32,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:43:32,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:43:32,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:43:32,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:43:32,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:43:32,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:43:32,704 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:43:32,705 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:43:32,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:43:32,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:43:32,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:43:32,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:43:32,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:43:32,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:43:32,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:43:32,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:43:32,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:43:32,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:43:32,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:43:32,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:43:32,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:43:32,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:43:32,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:43:32,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:43:32,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:43:32,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:43:32,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:43:32,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:43:32,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:43:32,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:43:32,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:43:32,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:43:32,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:43:32,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:43:32,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:43:32,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:43:32,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:43:32,767 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:43:32,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:43:32,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:43:32,768 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:43:32,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:43:32,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:43:32,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:43:32,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:43:32,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:43:32,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:43:32,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:43:32,770 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:43:32,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:43:32,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:43:32,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:43:32,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:43:32,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:43:32,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:43:32,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:43:32,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:43:32,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:43:32,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:43:32,772 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:43:32,772 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:43:32,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:43:32,772 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:43:32,772 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd18c623be1f9191aaeb26a7b3c18eeb579e4f661e34cc28939d56ae6edd64a3 [2021-12-14 17:43:32,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:43:33,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:43:33,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:43:33,021 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:43:33,022 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:43:33,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-12-14 17:43:33,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd6c40ce/caa306564daf49f7a71bc7aaf47c27da/FLAGb5e8e279e [2021-12-14 17:43:33,851 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:43:33,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-12-14 17:43:33,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd6c40ce/caa306564daf49f7a71bc7aaf47c27da/FLAGb5e8e279e [2021-12-14 17:43:34,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6bd6c40ce/caa306564daf49f7a71bc7aaf47c27da [2021-12-14 17:43:34,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:43:34,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:43:34,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:43:34,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:43:34,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:43:34,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:43:34" (1/1) ... [2021-12-14 17:43:34,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ca62d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:34, skipping insertion in model container [2021-12-14 17:43:34,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:43:34" (1/1) ... [2021-12-14 17:43:34,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:43:34,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:43:34,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i[164502,164515] [2021-12-14 17:43:35,574 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:43:35,611 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:43:35,788 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i[164502,164515] [2021-12-14 17:43:35,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:43:36,073 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:43:36,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36 WrapperNode [2021-12-14 17:43:36,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:43:36,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:43:36,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:43:36,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:43:36,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (1/1) ... [2021-12-14 17:43:36,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (1/1) ... [2021-12-14 17:43:36,282 INFO L137 Inliner]: procedures = 267, calls = 1404, calls flagged for inlining = 132, calls inlined = 127, statements flattened = 3470 [2021-12-14 17:43:36,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:43:36,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:43:36,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:43:36,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:43:36,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (1/1) ... [2021-12-14 17:43:36,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (1/1) ... [2021-12-14 17:43:36,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (1/1) ... [2021-12-14 17:43:36,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (1/1) ... [2021-12-14 17:43:36,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (1/1) ... [2021-12-14 17:43:36,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (1/1) ... [2021-12-14 17:43:36,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (1/1) ... [2021-12-14 17:43:36,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:43:36,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:43:36,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:43:36,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:43:36,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (1/1) ... [2021-12-14 17:43:36,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:43:36,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:43:36,532 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) [2021-12-14 17:43:36,555 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 [2021-12-14 17:43:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:43:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:43:36,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:43:36,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:43:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2021-12-14 17:43:36,571 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2021-12-14 17:43:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_mac_address [2021-12-14 17:43:36,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_mac_address [2021-12-14 17:43:36,571 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_open [2021-12-14 17:43:36,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_open [2021-12-14 17:43:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-14 17:43:36,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-14 17:43:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:43:36,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:43:36,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-14 17:43:36,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-14 17:43:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-14 17:43:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-14 17:43:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-12-14 17:43:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-12-14 17:43:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:43:36,573 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:43:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:43:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:43:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_resume [2021-12-14 17:43:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_resume [2021-12-14 17:43:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:43:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:43:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-14 17:43:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-14 17:43:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:43:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:43:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 17:43:36,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 17:43:36,575 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_rx_mode [2021-12-14 17:43:36,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_rx_mode [2021-12-14 17:43:36,576 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:43:36,576 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:43:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:43:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 17:43:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 17:43:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_powermode [2021-12-14 17:43:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_powermode [2021-12-14 17:43:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-12-14 17:43:36,577 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-12-14 17:43:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-14 17:43:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_stop [2021-12-14 17:43:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_stop [2021-12-14 17:43:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 17:43:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 17:43:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:43:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_wren [2021-12-14 17:43:36,579 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_wren [2021-12-14 17:43:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-14 17:43:36,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-14 17:43:36,580 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-14 17:43:36,580 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-14 17:43:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 17:43:36,581 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 17:43:36,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-14 17:43:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 17:43:36,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 17:43:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:43:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:43:36,582 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_eeprom_release [2021-12-14 17:43:36,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_eeprom_release [2021-12-14 17:43:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-14 17:43:36,583 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-14 17:43:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-14 17:43:36,583 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-14 17:43:36,583 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:43:36,583 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:43:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 17:43:36,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 17:43:36,584 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 17:43:36,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 17:43:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 17:43:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 17:43:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 17:43:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 17:43:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_irq [2021-12-14 17:43:36,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_irq [2021-12-14 17:43:36,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:43:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:43:36,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:43:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_enable [2021-12-14 17:43:36,586 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_enable [2021-12-14 17:43:36,586 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-14 17:43:36,586 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-14 17:43:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 17:43:36,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 17:43:36,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:43:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-12-14 17:43:36,588 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-12-14 17:43:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:43:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 17:43:36,589 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 17:43:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rx_1msg [2021-12-14 17:43:36,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rx_1msg [2021-12-14 17:43:36,589 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-12-14 17:43:36,590 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-12-14 17:43:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-14 17:43:36,590 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-14 17:43:36,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:43:36,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:43:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-12-14 17:43:36,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-12-14 17:43:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_eeprom_claim [2021-12-14 17:43:36,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_eeprom_claim [2021-12-14 17:43:36,591 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_soft_reset [2021-12-14 17:43:36,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_soft_reset [2021-12-14 17:43:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:43:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-14 17:43:36,592 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-14 17:43:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:43:36,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:43:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg [2021-12-14 17:43:36,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg [2021-12-14 17:43:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-12-14 17:43:36,593 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-12-14 17:43:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg8 [2021-12-14 17:43:36,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg8 [2021-12-14 17:43:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:43:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg16 [2021-12-14 17:43:36,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg16 [2021-12-14 17:43:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:43:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-14 17:43:36,594 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-14 17:43:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 17:43:36,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 17:43:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:43:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-14 17:43:36,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-14 17:43:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-14 17:43:36,595 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-14 17:43:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-14 17:43:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-14 17:43:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-14 17:43:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-14 17:43:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_ioctl [2021-12-14 17:43:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_ioctl [2021-12-14 17:43:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-14 17:43:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-14 17:43:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 17:43:36,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 17:43:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 17:43:36,597 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 17:43:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_write_mac_addr [2021-12-14 17:43:36,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_write_mac_addr [2021-12-14 17:43:36,597 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_wrreg16 [2021-12-14 17:43:36,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_wrreg16 [2021-12-14 17:43:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 17:43:36,598 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 17:43:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:43:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_suspend [2021-12-14 17:43:36,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_suspend [2021-12-14 17:43:36,598 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2021-12-14 17:43:36,599 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2021-12-14 17:43:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:43:36,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:43:36,599 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 17:43:36,599 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 17:43:37,215 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:43:37,218 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:43:37,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:44:01,749 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:44:01,762 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:44:01,763 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-14 17:44:01,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:44:01 BoogieIcfgContainer [2021-12-14 17:44:01,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:44:01,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:44:01,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:44:01,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:44:01,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:43:34" (1/3) ... [2021-12-14 17:44:01,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ffca9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:44:01, skipping insertion in model container [2021-12-14 17:44:01,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:36" (2/3) ... [2021-12-14 17:44:01,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ffca9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:44:01, skipping insertion in model container [2021-12-14 17:44:01,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:44:01" (3/3) ... [2021-12-14 17:44:01,776 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-12-14 17:44:01,785 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:44:01,786 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:44:01,836 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:44:01,850 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 [2021-12-14 17:44:01,851 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:44:01,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 1166 states, 828 states have (on average 1.3707729468599035) internal successors, (1135), 849 states have internal predecessors, (1135), 267 states have call successors, (267), 72 states have call predecessors, (267), 71 states have return successors, (257), 256 states have call predecessors, (257), 257 states have call successors, (257) [2021-12-14 17:44:01,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-14 17:44:01,922 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:44:01,922 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:44:01,923 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:44:01,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:44:01,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1826626141, now seen corresponding path program 1 times [2021-12-14 17:44:01,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:44:01,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242988309] [2021-12-14 17:44:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:44:01,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:44:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:02,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:44:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:02,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:44:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:02,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:44:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:02,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:44:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:44:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:02,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:44:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-14 17:44:02,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:44:02,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242988309] [2021-12-14 17:44:02,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242988309] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:44:02,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:44:02,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:44:02,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027497595] [2021-12-14 17:44:02,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:44:02,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:44:02,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:44:02,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:44:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:44:02,826 INFO L87 Difference]: Start difference. First operand has 1166 states, 828 states have (on average 1.3707729468599035) internal successors, (1135), 849 states have internal predecessors, (1135), 267 states have call successors, (267), 72 states have call predecessors, (267), 71 states have return successors, (257), 256 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-14 17:44:04,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:44:06,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:44:12,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:44:12,150 INFO L93 Difference]: Finished difference Result 3535 states and 5169 transitions. [2021-12-14 17:44:12,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:44:12,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-12-14 17:44:12,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:44:12,187 INFO L225 Difference]: With dead ends: 3535 [2021-12-14 17:44:12,187 INFO L226 Difference]: Without dead ends: 2346 [2021-12-14 17:44:12,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:44:12,200 INFO L933 BasicCegarLoop]: 1826 mSDtfsCounter, 1952 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 616 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 4077 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-12-14 17:44:12,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2122 Valid, 4077 Invalid, 1437 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [616 Valid, 819 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2021-12-14 17:44:12,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2021-12-14 17:44:12,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2244. [2021-12-14 17:44:12,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 1605 states have (on average 1.3532710280373832) internal successors, (2172), 1619 states have internal predecessors, (2172), 498 states have call successors, (498), 141 states have call predecessors, (498), 140 states have return successors, (497), 495 states have call predecessors, (497), 497 states have call successors, (497) [2021-12-14 17:44:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3167 transitions. [2021-12-14 17:44:12,378 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3167 transitions. Word has length 56 [2021-12-14 17:44:12,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:44:12,378 INFO L470 AbstractCegarLoop]: Abstraction has 2244 states and 3167 transitions. [2021-12-14 17:44:12,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-14 17:44:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3167 transitions. [2021-12-14 17:44:12,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-14 17:44:12,385 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:44:12,385 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:44:12,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:44:12,385 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:44:12,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:44:12,388 INFO L85 PathProgramCache]: Analyzing trace with hash -78533526, now seen corresponding path program 1 times [2021-12-14 17:44:12,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:44:12,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412988425] [2021-12-14 17:44:12,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:44:12,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:44:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:12,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:44:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:12,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:44:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:12,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:44:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:12,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:44:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:12,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:44:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:12,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:44:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:12,827 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-14 17:44:12,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:44:12,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412988425] [2021-12-14 17:44:12,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412988425] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:44:12,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:44:12,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:44:12,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852477292] [2021-12-14 17:44:12,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:44:12,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:44:12,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:44:12,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:44:12,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:44:12,834 INFO L87 Difference]: Start difference. First operand 2244 states and 3167 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-14 17:44:14,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:44:21,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:44:21,563 INFO L93 Difference]: Finished difference Result 6893 states and 9861 transitions. [2021-12-14 17:44:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:44:21,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-12-14 17:44:21,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:44:21,590 INFO L225 Difference]: With dead ends: 6893 [2021-12-14 17:44:21,590 INFO L226 Difference]: Without dead ends: 4658 [2021-12-14 17:44:21,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:44:21,602 INFO L933 BasicCegarLoop]: 1793 mSDtfsCounter, 1968 mSDsluCounter, 5475 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 618 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 7268 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-12-14 17:44:21,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2134 Valid, 7268 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [618 Valid, 1317 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-12-14 17:44:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2021-12-14 17:44:21,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4492. [2021-12-14 17:44:21,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4492 states, 3212 states have (on average 1.3530510585305107) internal successors, (4346), 3248 states have internal predecessors, (4346), 989 states have call successors, (989), 281 states have call predecessors, (989), 290 states have return successors, (1059), 986 states have call predecessors, (1059), 988 states have call successors, (1059) [2021-12-14 17:44:21,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 6394 transitions. [2021-12-14 17:44:21,781 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 6394 transitions. Word has length 58 [2021-12-14 17:44:21,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:44:21,782 INFO L470 AbstractCegarLoop]: Abstraction has 4492 states and 6394 transitions. [2021-12-14 17:44:21,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-14 17:44:21,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 6394 transitions. [2021-12-14 17:44:21,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-12-14 17:44:21,797 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:44:21,798 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:44:21,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:44:21,798 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:44:21,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:44:21,799 INFO L85 PathProgramCache]: Analyzing trace with hash -115610240, now seen corresponding path program 1 times [2021-12-14 17:44:21,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:44:21,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92669890] [2021-12-14 17:44:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:44:21,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:44:21,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:44:22,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:44:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:44:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:44:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:44:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:44:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 17:44:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:44:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-14 17:44:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:44:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:44:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 17:44:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 17:44:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-14 17:44:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:44:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 17:44:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:44:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-14 17:44:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 17:44:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 17:44:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 17:44:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:22,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-14 17:44:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:44:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 17:44:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:44:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 17:44:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:44:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:44:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:44:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:44:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:44:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 17:44:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 17:44:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 17:44:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 17:44:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:44:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-14 17:44:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:44:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 17:44:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:44:23,409 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-12-14 17:44:23,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:44:23,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92669890] [2021-12-14 17:44:23,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92669890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:44:23,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:44:23,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-14 17:44:23,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146980343] [2021-12-14 17:44:23,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:44:23,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-14 17:44:23,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:44:23,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-14 17:44:23,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-14 17:44:23,418 INFO L87 Difference]: Start difference. First operand 4492 states and 6394 transitions. Second operand has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (35), 7 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2021-12-14 17:44:25,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []