./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.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 73f2068ebecd267166c2d24f656fc1164bd021977ce12d612bec590cb9866503 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:43:52,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:43:52,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:43:52,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:43:52,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:43:52,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:43:52,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:43:52,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:43:52,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:43:52,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:43:52,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:43:52,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:43:52,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:43:52,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:43:52,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:43:52,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:43:52,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:43:52,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:43:52,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:43:52,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:43:52,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:43:52,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:43:52,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:43:52,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:43:52,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:43:52,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:43:52,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:43:52,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:43:52,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:43:52,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:43:52,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:43:52,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:43:52,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:43:52,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:43:52,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:43:52,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:43:52,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:43:52,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:43:52,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:43:52,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:43:52,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:43:52,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:43:52,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:43:52,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:43:52,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:43:52,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:43:52,842 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:43:52,843 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:43:52,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:43:52,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:43:52,843 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:43:52,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:43:52,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:43:52,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:43:52,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:43:52,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:43:52,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:43:52,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:43:52,845 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:43:52,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:43:52,845 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:43:52,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:43:52,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:43:52,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:43:52,846 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:43:52,846 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:43:52,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:43:52,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:43:52,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:43:52,848 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:43:52,848 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:43:52,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:43:52,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:43:52,848 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73f2068ebecd267166c2d24f656fc1164bd021977ce12d612bec590cb9866503 [2021-12-21 16:43:53,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:43:53,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:43:53,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:43:53,028 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:43:53,028 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:43:53,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i [2021-12-21 16:43:53,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a75b9a5b5/5cdcba5bd3e1453abd69ef5fb4366813/FLAG4a596f7cf [2021-12-21 16:43:53,743 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:43:53,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i [2021-12-21 16:43:53,791 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a75b9a5b5/5cdcba5bd3e1453abd69ef5fb4366813/FLAG4a596f7cf [2021-12-21 16:43:53,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a75b9a5b5/5cdcba5bd3e1453abd69ef5fb4366813 [2021-12-21 16:43:53,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:43:53,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:43:53,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:43:53,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:43:53,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:43:53,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:43:53" (1/1) ... [2021-12-21 16:43:53,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d5f6e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:53, skipping insertion in model container [2021-12-21 16:43:53,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:43:53" (1/1) ... [2021-12-21 16:43:53,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:43:53,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:43:56,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i[381779,381792] [2021-12-21 16:43:56,548 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:43:56,612 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:43:56,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i[381779,381792] [2021-12-21 16:43:56,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:43:57,052 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:43:57,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57 WrapperNode [2021-12-21 16:43:57,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:43:57,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:43:57,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:43:57,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:43:57,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (1/1) ... [2021-12-21 16:43:57,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (1/1) ... [2021-12-21 16:43:57,352 INFO L137 Inliner]: procedures = 473, calls = 3863, calls flagged for inlining = 218, calls inlined = 198, statements flattened = 7207 [2021-12-21 16:43:57,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:43:57,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:43:57,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:43:57,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:43:57,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (1/1) ... [2021-12-21 16:43:57,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (1/1) ... [2021-12-21 16:43:57,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (1/1) ... [2021-12-21 16:43:57,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (1/1) ... [2021-12-21 16:43:57,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (1/1) ... [2021-12-21 16:43:57,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (1/1) ... [2021-12-21 16:43:57,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (1/1) ... [2021-12-21 16:43:57,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:43:57,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:43:57,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:43:57,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:43:57,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (1/1) ... [2021-12-21 16:43:57,627 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:43:57,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:43:57,685 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) [2021-12-21 16:43:57,715 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 [2021-12-21 16:43:57,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-12-21 16:43:57,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-12-21 16:43:57,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:43:57,791 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:43:57,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-21 16:43:57,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-21 16:43:57,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:43:57,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:43:57,791 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2021-12-21 16:43:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2021-12-21 16:43:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2021-12-21 16:43:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2021-12-21 16:43:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-21 16:43:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-21 16:43:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2021-12-21 16:43:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2021-12-21 16:43:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2021-12-21 16:43:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2021-12-21 16:43:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2021-12-21 16:43:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2021-12-21 16:43:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-21 16:43:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-21 16:43:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2021-12-21 16:43:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2021-12-21 16:43:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-21 16:43:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-21 16:43:57,792 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-21 16:43:57,792 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-21 16:43:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure alx_link_check [2021-12-21 16:43:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_link_check [2021-12-21 16:43:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2021-12-21 16:43:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2021-12-21 16:43:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2021-12-21 16:43:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2021-12-21 16:43:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:43:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:43:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2021-12-21 16:43:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2021-12-21 16:43:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2021-12-21 16:43:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2021-12-21 16:43:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-21 16:43:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-21 16:43:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-21 16:43:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-21 16:43:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 16:43:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 16:43:57,793 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2021-12-21 16:43:57,793 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2021-12-21 16:43:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:43:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:43:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2021-12-21 16:43:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2021-12-21 16:43:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-21 16:43:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-21 16:43:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:43:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-21 16:43:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-21 16:43:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2021-12-21 16:43:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2021-12-21 16:43:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-21 16:43:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-21 16:43:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-21 16:43:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-21 16:43:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2021-12-21 16:43:57,794 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2021-12-21 16:43:57,794 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2021-12-21 16:43:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 16:43:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:43:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_detected [2021-12-21 16:43:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_detected [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2021-12-21 16:43:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 16:43:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2021-12-21 16:43:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-21 16:43:57,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:43:57,795 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2021-12-21 16:43:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2021-12-21 16:43:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure alx_change_mtu [2021-12-21 16:43:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_change_mtu [2021-12-21 16:43:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:43:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-21 16:43:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-21 16:43:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:43:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:43:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2021-12-21 16:43:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2021-12-21 16:43:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2021-12-21 16:43:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2021-12-21 16:43:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2021-12-21 16:43:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2021-12-21 16:43:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-21 16:43:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-21 16:43:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2021-12-21 16:43:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2021-12-21 16:43:57,796 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2021-12-21 16:43:57,796 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-21 16:43:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset [2021-12-21 16:43:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:43:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2021-12-21 16:43:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-21 16:43:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2021-12-21 16:43:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2021-12-21 16:43:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:43:57,797 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-21 16:43:57,797 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 16:43:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2021-12-21 16:43:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2021-12-21 16:43:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2021-12-21 16:43:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_stats64 [2021-12-21 16:43:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_stats64 [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2021-12-21 16:43:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2021-12-21 16:43:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2021-12-21 16:43:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2021-12-21 16:43:57,798 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2021-12-21 16:43:57,798 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-21 16:43:57,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-21 16:43:57,799 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-12-21 16:43:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:43:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-21 16:43:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-21 16:43:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_mac_address [2021-12-21 16:43:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_mac_address [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-21 16:43:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-21 16:43:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-21 16:43:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-21 16:43:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-21 16:43:57,800 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2021-12-21 16:43:57,800 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 16:43:57,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 16:43:57,801 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-21 16:43:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-21 16:43:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:43:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2021-12-21 16:43:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2021-12-21 16:43:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-21 16:43:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2021-12-21 16:43:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 16:43:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-21 16:43:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_slot_reset [2021-12-21 16:43:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_slot_reset [2021-12-21 16:43:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure alx_ioctl [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_ioctl [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure alx_fix_features [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_fix_features [2021-12-21 16:43:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 16:43:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2021-12-21 16:43:57,804 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2021-12-21 16:43:57,804 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2021-12-21 16:43:57,805 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-21 16:43:57,805 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-21 16:43:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-21 16:43:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-21 16:43:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-21 16:43:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-21 16:43:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-12-21 16:43:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-12-21 16:43:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2021-12-21 16:43:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2021-12-21 16:43:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2021-12-21 16:43:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2021-12-21 16:43:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 16:43:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 16:43:57,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-21 16:43:57,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-21 16:43:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-21 16:43:57,807 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-21 16:43:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:43:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2021-12-21 16:43:57,807 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2021-12-21 16:43:57,807 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2021-12-21 16:43:57,807 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2021-12-21 16:43:58,479 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:43:58,483 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:43:58,643 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:44:06,687 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:44:06,707 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:44:06,707 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 16:44:06,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:44:06 BoogieIcfgContainer [2021-12-21 16:44:06,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:44:06,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:44:06,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:44:06,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:44:06,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:43:53" (1/3) ... [2021-12-21 16:44:06,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61281b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:44:06, skipping insertion in model container [2021-12-21 16:44:06,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:43:57" (2/3) ... [2021-12-21 16:44:06,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61281b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:44:06, skipping insertion in model container [2021-12-21 16:44:06,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:44:06" (3/3) ... [2021-12-21 16:44:06,718 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--atheros--alx--alx.ko-entry_point.cil.out.i [2021-12-21 16:44:06,726 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:44:06,726 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:44:06,774 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:44:06,788 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 [2021-12-21 16:44:06,789 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:44:06,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 2605 states, 1756 states have (on average 1.3314350797266514) internal successors, (2338), 1805 states have internal predecessors, (2338), 697 states have call successors, (697), 152 states have call predecessors, (697), 151 states have return successors, (684), 675 states have call predecessors, (684), 684 states have call successors, (684) [2021-12-21 16:44:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-21 16:44:06,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:06,863 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:44:06,864 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:06,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:06,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1674508748, now seen corresponding path program 1 times [2021-12-21 16:44:06,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:06,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19340855] [2021-12-21 16:44:06,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:06,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:44:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:44:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:44:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 16:44:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-21 16:44:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:44:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-21 16:44:07,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:44:07,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19340855] [2021-12-21 16:44:07,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19340855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:44:07,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:44:07,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:44:07,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496577232] [2021-12-21 16:44:07,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:44:07,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:44:07,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:44:07,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:44:07,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:44:07,769 INFO L87 Difference]: Start difference. First operand has 2605 states, 1756 states have (on average 1.3314350797266514) internal successors, (2338), 1805 states have internal predecessors, (2338), 697 states have call successors, (697), 152 states have call predecessors, (697), 151 states have return successors, (684), 675 states have call predecessors, (684), 684 states have call successors, (684) Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-21 16:44:11,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:15,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:44:15,163 INFO L93 Difference]: Finished difference Result 5477 states and 7944 transitions. [2021-12-21 16:44:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 16:44:15,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 159 [2021-12-21 16:44:15,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:44:15,209 INFO L225 Difference]: With dead ends: 5477 [2021-12-21 16:44:15,210 INFO L226 Difference]: Without dead ends: 2848 [2021-12-21 16:44:15,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:44:15,288 INFO L933 BasicCegarLoop]: 3456 mSDtfsCounter, 2511 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 2935 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 4976 SdHoareTripleChecker+Invalid, 4119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2935 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-12-21 16:44:15,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2558 Valid, 4976 Invalid, 4119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2935 Valid, 1183 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-12-21 16:44:15,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2021-12-21 16:44:15,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2573. [2021-12-21 16:44:15,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 1739 states have (on average 1.3214491086831512) internal successors, (2298), 1772 states have internal predecessors, (2298), 683 states have call successors, (683), 151 states have call predecessors, (683), 150 states have return successors, (682), 673 states have call predecessors, (682), 682 states have call successors, (682) [2021-12-21 16:44:15,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 3663 transitions. [2021-12-21 16:44:15,484 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 3663 transitions. Word has length 159 [2021-12-21 16:44:15,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:44:15,485 INFO L470 AbstractCegarLoop]: Abstraction has 2573 states and 3663 transitions. [2021-12-21 16:44:15,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-21 16:44:15,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 3663 transitions. [2021-12-21 16:44:15,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-21 16:44:15,496 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:15,496 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:44:15,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:44:15,497 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:15,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:15,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1384403330, now seen corresponding path program 1 times [2021-12-21 16:44:15,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:15,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311499963] [2021-12-21 16:44:15,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:15,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:15,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:44:15,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:44:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:44:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 16:44:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-21 16:44:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:15,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:16,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-21 16:44:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:16,012 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2021-12-21 16:44:16,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:44:16,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311499963] [2021-12-21 16:44:16,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311499963] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:44:16,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:44:16,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:44:16,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243416142] [2021-12-21 16:44:16,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:44:16,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:44:16,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:44:16,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:44:16,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:44:16,020 INFO L87 Difference]: Start difference. First operand 2573 states and 3663 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-21 16:44:19,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:21,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:27,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:31,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:44:31,193 INFO L93 Difference]: Finished difference Result 7887 states and 11340 transitions. [2021-12-21 16:44:31,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:44:31,193 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 159 [2021-12-21 16:44:31,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:44:31,256 INFO L225 Difference]: With dead ends: 7887 [2021-12-21 16:44:31,256 INFO L226 Difference]: Without dead ends: 5337 [2021-12-21 16:44:31,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:44:31,266 INFO L933 BasicCegarLoop]: 3926 mSDtfsCounter, 5806 mSDsluCounter, 5676 mSDsCounter, 0 mSdLazyCounter, 4201 mSolverCounterSat, 4060 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6218 SdHoareTripleChecker+Valid, 9602 SdHoareTripleChecker+Invalid, 8264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4060 IncrementalHoareTripleChecker+Valid, 4201 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:44:31,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6218 Valid, 9602 Invalid, 8264 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4060 Valid, 4201 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time] [2021-12-21 16:44:31,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5337 states. [2021-12-21 16:44:31,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5337 to 4794. [2021-12-21 16:44:31,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4794 states, 3237 states have (on average 1.321902996601792) internal successors, (4279), 3304 states have internal predecessors, (4279), 1269 states have call successors, (1269), 288 states have call predecessors, (1269), 287 states have return successors, (1268), 1247 states have call predecessors, (1268), 1268 states have call successors, (1268) [2021-12-21 16:44:31,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4794 states to 4794 states and 6816 transitions. [2021-12-21 16:44:31,446 INFO L78 Accepts]: Start accepts. Automaton has 4794 states and 6816 transitions. Word has length 159 [2021-12-21 16:44:31,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:44:31,448 INFO L470 AbstractCegarLoop]: Abstraction has 4794 states and 6816 transitions. [2021-12-21 16:44:31,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-21 16:44:31,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4794 states and 6816 transitions. [2021-12-21 16:44:31,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-12-21 16:44:31,455 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:31,455 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:44:31,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:44:31,456 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:31,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:31,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1047828308, now seen corresponding path program 1 times [2021-12-21 16:44:31,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:31,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126481061] [2021-12-21 16:44:31,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:31,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:31,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:31,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:44:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:44:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:44:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 16:44:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-21 16:44:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-21 16:44:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 16:44:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 16:44:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:31,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 16:44:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-21 16:44:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-21 16:44:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2021-12-21 16:44:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-21 16:44:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-21 16:44:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-21 16:44:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-21 16:44:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-21 16:44:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-21 16:44:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-21 16:44:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2021-12-21 16:44:32,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:44:32,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126481061] [2021-12-21 16:44:32,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126481061] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:44:32,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:44:32,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:44:32,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543381784] [2021-12-21 16:44:32,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:44:32,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:44:32,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:44:32,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:44:32,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:44:32,061 INFO L87 Difference]: Start difference. First operand 4794 states and 6816 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-21 16:44:34,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:36,442 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:40,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:46,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:47,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:48,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:44:48,017 INFO L93 Difference]: Finished difference Result 15202 states and 21828 transitions. [2021-12-21 16:44:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:44:48,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 244 [2021-12-21 16:44:48,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:44:48,071 INFO L225 Difference]: With dead ends: 15202 [2021-12-21 16:44:48,072 INFO L226 Difference]: Without dead ends: 10431 [2021-12-21 16:44:48,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:44:48,097 INFO L933 BasicCegarLoop]: 4157 mSDtfsCounter, 6028 mSDsluCounter, 5592 mSDsCounter, 0 mSdLazyCounter, 4573 mSolverCounterSat, 4136 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6476 SdHoareTripleChecker+Valid, 9749 SdHoareTripleChecker+Invalid, 8711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4136 IncrementalHoareTripleChecker+Valid, 4573 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-12-21 16:44:48,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6476 Valid, 9749 Invalid, 8711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4136 Valid, 4573 Invalid, 2 Unknown, 0 Unchecked, 15.5s Time] [2021-12-21 16:44:48,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2021-12-21 16:44:48,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 9380. [2021-12-21 16:44:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9380 states, 6341 states have (on average 1.3214004100299637) internal successors, (8379), 6471 states have internal predecessors, (8379), 2470 states have call successors, (2470), 569 states have call predecessors, (2470), 568 states have return successors, (2469), 2425 states have call predecessors, (2469), 2469 states have call successors, (2469) [2021-12-21 16:44:48,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9380 states to 9380 states and 13318 transitions. [2021-12-21 16:44:48,489 INFO L78 Accepts]: Start accepts. Automaton has 9380 states and 13318 transitions. Word has length 244 [2021-12-21 16:44:48,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:44:48,491 INFO L470 AbstractCegarLoop]: Abstraction has 9380 states and 13318 transitions. [2021-12-21 16:44:48,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-21 16:44:48,492 INFO L276 IsEmpty]: Start isEmpty. Operand 9380 states and 13318 transitions. [2021-12-21 16:44:48,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-12-21 16:44:48,503 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:44:48,503 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:44:48,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:44:48,504 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:44:48,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:44:48,505 INFO L85 PathProgramCache]: Analyzing trace with hash -2065086585, now seen corresponding path program 1 times [2021-12-21 16:44:48,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:44:48,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352664083] [2021-12-21 16:44:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:44:48,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:44:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:44:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:48,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:44:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:44:48,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:44:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:44:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-21 16:44:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-21 16:44:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 16:44:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:48,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-21 16:44:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-21 16:44:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:49,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-21 16:44:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-21 16:44:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-21 16:44:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-21 16:44:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-21 16:44:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:44:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-21 16:44:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-21 16:44:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-21 16:44:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:44:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-21 16:44:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-21 16:44:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-21 16:44:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-21 16:44:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-21 16:44:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-12-21 16:44:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-21 16:44:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-21 16:44:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-12-21 16:44:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-21 16:44:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-21 16:44:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:44:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 868 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2021-12-21 16:44:49,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:44:49,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352664083] [2021-12-21 16:44:49,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352664083] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:44:49,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:44:49,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 16:44:49,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185069104] [2021-12-21 16:44:49,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:44:49,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 16:44:49,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:44:49,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 16:44:49,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:44:49,257 INFO L87 Difference]: Start difference. First operand 9380 states and 13318 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (38), 6 states have call predecessors, (38), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-21 16:44:52,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:44:56,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []