./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fd18c623be1f9191aaeb26a7b3c18eeb579e4f661e34cc28939d56ae6edd64a3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:55:47,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:55:47,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:55:47,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:55:47,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:55:47,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:55:47,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:55:47,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:55:47,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:55:47,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:55:47,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:55:47,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:55:47,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:55:47,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:55:47,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:55:47,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:55:47,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:55:47,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:55:47,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:55:47,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:55:47,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:55:47,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:55:47,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:55:47,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:55:47,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:55:47,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:55:47,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:55:47,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:55:47,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:55:47,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:55:47,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:55:47,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:55:47,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:55:47,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:55:47,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:55:47,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:55:47,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:55:47,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:55:47,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:55:47,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:55:47,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:55:47,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:55:47,922 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:55:47,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:55:47,923 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:55:47,923 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:55:47,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:55:47,924 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:55:47,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:55:47,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:55:47,925 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:55:47,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:55:47,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:55:47,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:55:47,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:55:47,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:55:47,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:55:47,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:55:47,927 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:55:47,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:55:47,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:55:47,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:55:47,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:55:47,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:55:47,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:55:47,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:55:47,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:55:47,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:55:47,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:55:47,933 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:55:47,933 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:55:47,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:55:47,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd18c623be1f9191aaeb26a7b3c18eeb579e4f661e34cc28939d56ae6edd64a3 [2021-12-28 03:55:48,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:55:48,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:55:48,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:55:48,228 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:55:48,229 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:55:48,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-12-28 03:55:48,283 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c161bab/c8cbdb1fe4a849e8b4a3f95ac1397a5a/FLAG7ad55e4c1 [2021-12-28 03:55:48,867 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:55:48,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-12-28 03:55:48,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c161bab/c8cbdb1fe4a849e8b4a3f95ac1397a5a/FLAG7ad55e4c1 [2021-12-28 03:55:49,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6c161bab/c8cbdb1fe4a849e8b4a3f95ac1397a5a [2021-12-28 03:55:49,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:55:49,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:55:49,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:55:49,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:55:49,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:55:49,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:55:49" (1/1) ... [2021-12-28 03:55:49,055 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4768c38a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:49, skipping insertion in model container [2021-12-28 03:55:49,055 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:55:49" (1/1) ... [2021-12-28 03:55:49,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:55:49,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:55:49,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i[164502,164515] [2021-12-28 03:55:50,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:55:50,515 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:55:50,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i[164502,164515] [2021-12-28 03:55:50,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:55:50,921 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:55:50,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50 WrapperNode [2021-12-28 03:55:50,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:55:50,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:55:50,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:55:50,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:55:50,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (1/1) ... [2021-12-28 03:55:50,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (1/1) ... [2021-12-28 03:55:51,088 INFO L137 Inliner]: procedures = 267, calls = 1404, calls flagged for inlining = 132, calls inlined = 127, statements flattened = 3470 [2021-12-28 03:55:51,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:55:51,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:55:51,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:55:51,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:55:51,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (1/1) ... [2021-12-28 03:55:51,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (1/1) ... [2021-12-28 03:55:51,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (1/1) ... [2021-12-28 03:55:51,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (1/1) ... [2021-12-28 03:55:51,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (1/1) ... [2021-12-28 03:55:51,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (1/1) ... [2021-12-28 03:55:51,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (1/1) ... [2021-12-28 03:55:51,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:55:51,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:55:51,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:55:51,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:55:51,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (1/1) ... [2021-12-28 03:55:51,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:55:51,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:55:51,260 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) [2021-12-28 03:55:51,266 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 [2021-12-28 03:55:51,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:55:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:55:51,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 03:55:51,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 03:55:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2021-12-28 03:55:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2021-12-28 03:55:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_mac_address [2021-12-28 03:55:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_mac_address [2021-12-28 03:55:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_open [2021-12-28 03:55:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_open [2021-12-28 03:55:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-28 03:55:51,288 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-28 03:55:51,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:55:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:55:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-28 03:55:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-28 03:55:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-28 03:55:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-28 03:55:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-12-28 03:55:51,289 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-12-28 03:55:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:55:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:55:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:55:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:55:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_resume [2021-12-28 03:55:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_resume [2021-12-28 03:55:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 03:55:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 03:55:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-28 03:55:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-28 03:55:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:55:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:55:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 03:55:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 03:55:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_rx_mode [2021-12-28 03:55:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_rx_mode [2021-12-28 03:55:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:55:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:55:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:55:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 03:55:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 03:55:51,292 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_powermode [2021-12-28 03:55:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_powermode [2021-12-28 03:55:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-12-28 03:55:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-12-28 03:55:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-28 03:55:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_stop [2021-12-28 03:55:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_stop [2021-12-28 03:55:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-28 03:55:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-28 03:55:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:55:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_wren [2021-12-28 03:55:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_wren [2021-12-28 03:55:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-28 03:55:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-28 03:55:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-28 03:55:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-28 03:55:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-28 03:55:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-28 03:55:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-28 03:55:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 03:55:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 03:55:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:55:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:55:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_eeprom_release [2021-12-28 03:55:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_eeprom_release [2021-12-28 03:55:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-28 03:55:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-28 03:55:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-28 03:55:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-28 03:55:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 03:55:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 03:55:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 03:55:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 03:55:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 03:55:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 03:55:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-28 03:55:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-28 03:55:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 03:55:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 03:55:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_irq [2021-12-28 03:55:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_irq [2021-12-28 03:55:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:55:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 03:55:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 03:55:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_enable [2021-12-28 03:55:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_enable [2021-12-28 03:55:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-28 03:55:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-28 03:55:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 03:55:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 03:55:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:55:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-12-28 03:55:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-12-28 03:55:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:55:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 03:55:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 03:55:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rx_1msg [2021-12-28 03:55:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rx_1msg [2021-12-28 03:55:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-12-28 03:55:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-12-28 03:55:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-28 03:55:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-28 03:55:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 03:55:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 03:55:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-12-28 03:55:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-12-28 03:55:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_eeprom_claim [2021-12-28 03:55:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_eeprom_claim [2021-12-28 03:55:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_soft_reset [2021-12-28 03:55:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_soft_reset [2021-12-28 03:55:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:55:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-28 03:55:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-28 03:55:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:55:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:55:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg [2021-12-28 03:55:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg [2021-12-28 03:55:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-12-28 03:55:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-12-28 03:55:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg8 [2021-12-28 03:55:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg8 [2021-12-28 03:55:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:55:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg16 [2021-12-28 03:55:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg16 [2021-12-28 03:55:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:55:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-28 03:55:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-28 03:55:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 03:55:51,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 03:55:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:55:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-28 03:55:51,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-28 03:55:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-28 03:55:51,336 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-28 03:55:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-28 03:55:51,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-28 03:55:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-28 03:55:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-28 03:55:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_ioctl [2021-12-28 03:55:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_ioctl [2021-12-28 03:55:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-28 03:55:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-28 03:55:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-28 03:55:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-28 03:55:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 03:55:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 03:55:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_write_mac_addr [2021-12-28 03:55:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_write_mac_addr [2021-12-28 03:55:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_wrreg16 [2021-12-28 03:55:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_wrreg16 [2021-12-28 03:55:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 03:55:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 03:55:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:55:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_suspend [2021-12-28 03:55:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_suspend [2021-12-28 03:55:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2021-12-28 03:55:51,339 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2021-12-28 03:55:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:55:51,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:55:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 03:55:51,339 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 03:55:51,841 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:55:51,843 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:55:52,126 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 03:56:14,174 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:56:14,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:56:14,189 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-28 03:56:14,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:56:14 BoogieIcfgContainer [2021-12-28 03:56:14,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:56:14,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:56:14,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:56:14,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:56:14,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:55:49" (1/3) ... [2021-12-28 03:56:14,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac015d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:56:14, skipping insertion in model container [2021-12-28 03:56:14,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:50" (2/3) ... [2021-12-28 03:56:14,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac015d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:56:14, skipping insertion in model container [2021-12-28 03:56:14,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:56:14" (3/3) ... [2021-12-28 03:56:14,199 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-12-28 03:56:14,203 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:56:14,203 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:56:14,248 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:56:14,256 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 [2021-12-28 03:56:14,256 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:56:14,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 1166 states, 828 states have (on average 1.3707729468599035) internal successors, (1135), 849 states have internal predecessors, (1135), 267 states have call successors, (267), 72 states have call predecessors, (267), 71 states have return successors, (257), 256 states have call predecessors, (257), 257 states have call successors, (257) [2021-12-28 03:56:14,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-28 03:56:14,318 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:56:14,319 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:56:14,319 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:56:14,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:56:14,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1826626141, now seen corresponding path program 1 times [2021-12-28 03:56:14,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:56:14,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248348201] [2021-12-28 03:56:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:56:14,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:56:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:14,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:56:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:14,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:56:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:14,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:56:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:56:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:14,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:56:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:15,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:56:15,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:15,014 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-28 03:56:15,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:56:15,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248348201] [2021-12-28 03:56:15,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248348201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:56:15,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:56:15,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:56:15,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965189715] [2021-12-28 03:56:15,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:56:15,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:56:15,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:56:15,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:56:15,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:56:15,048 INFO L87 Difference]: Start difference. First operand has 1166 states, 828 states have (on average 1.3707729468599035) internal successors, (1135), 849 states have internal predecessors, (1135), 267 states have call successors, (267), 72 states have call predecessors, (267), 71 states have return successors, (257), 256 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-28 03:56:17,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:56:19,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:56:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:56:23,739 INFO L93 Difference]: Finished difference Result 3535 states and 5169 transitions. [2021-12-28 03:56:23,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:56:23,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-12-28 03:56:23,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:56:23,764 INFO L225 Difference]: With dead ends: 3535 [2021-12-28 03:56:23,764 INFO L226 Difference]: Without dead ends: 2346 [2021-12-28 03:56:23,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:56:23,776 INFO L933 BasicCegarLoop]: 1827 mSDtfsCounter, 1952 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 616 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 3932 SdHoareTripleChecker+Invalid, 1584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:56:23,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2121 Valid, 3932 Invalid, 1584 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [616 Valid, 966 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2021-12-28 03:56:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2021-12-28 03:56:23,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2244. [2021-12-28 03:56:23,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 1605 states have (on average 1.3532710280373832) internal successors, (2172), 1619 states have internal predecessors, (2172), 498 states have call successors, (498), 141 states have call predecessors, (498), 140 states have return successors, (497), 495 states have call predecessors, (497), 497 states have call successors, (497) [2021-12-28 03:56:23,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3167 transitions. [2021-12-28 03:56:23,942 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3167 transitions. Word has length 56 [2021-12-28 03:56:23,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:56:23,943 INFO L470 AbstractCegarLoop]: Abstraction has 2244 states and 3167 transitions. [2021-12-28 03:56:23,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-28 03:56:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3167 transitions. [2021-12-28 03:56:23,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-28 03:56:23,950 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:56:23,950 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:56:23,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:56:23,952 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:56:23,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:56:23,954 INFO L85 PathProgramCache]: Analyzing trace with hash -78533526, now seen corresponding path program 1 times [2021-12-28 03:56:23,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:56:23,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459320936] [2021-12-28 03:56:23,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:56:23,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:56:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:24,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:56:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:24,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:56:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:24,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:56:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:24,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:56:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:24,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:56:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:24,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:56:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:24,392 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-28 03:56:24,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:56:24,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459320936] [2021-12-28 03:56:24,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459320936] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:56:24,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:56:24,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 03:56:24,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977412210] [2021-12-28 03:56:24,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:56:24,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 03:56:24,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:56:24,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 03:56:24,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-28 03:56:24,398 INFO L87 Difference]: Start difference. First operand 2244 states and 3167 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-28 03:56:26,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:56:34,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:56:34,102 INFO L93 Difference]: Finished difference Result 6893 states and 9861 transitions. [2021-12-28 03:56:34,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 03:56:34,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-12-28 03:56:34,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:56:34,123 INFO L225 Difference]: With dead ends: 6893 [2021-12-28 03:56:34,123 INFO L226 Difference]: Without dead ends: 4658 [2021-12-28 03:56:34,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-28 03:56:34,133 INFO L933 BasicCegarLoop]: 1793 mSDtfsCounter, 1968 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 2022 mSolverCounterSat, 618 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2134 SdHoareTripleChecker+Valid, 6563 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 2022 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-12-28 03:56:34,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2134 Valid, 6563 Invalid, 2641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [618 Valid, 2022 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2021-12-28 03:56:34,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2021-12-28 03:56:34,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4492. [2021-12-28 03:56:34,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4492 states, 3212 states have (on average 1.3530510585305107) internal successors, (4346), 3248 states have internal predecessors, (4346), 989 states have call successors, (989), 281 states have call predecessors, (989), 290 states have return successors, (1059), 986 states have call predecessors, (1059), 988 states have call successors, (1059) [2021-12-28 03:56:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 6394 transitions. [2021-12-28 03:56:34,271 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 6394 transitions. Word has length 58 [2021-12-28 03:56:34,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:56:34,272 INFO L470 AbstractCegarLoop]: Abstraction has 4492 states and 6394 transitions. [2021-12-28 03:56:34,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-28 03:56:34,272 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 6394 transitions. [2021-12-28 03:56:34,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-12-28 03:56:34,286 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:56:34,287 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:56:34,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:56:34,287 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:56:34,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:56:34,288 INFO L85 PathProgramCache]: Analyzing trace with hash -115610240, now seen corresponding path program 1 times [2021-12-28 03:56:34,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:56:34,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587894564] [2021-12-28 03:56:34,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:56:34,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:56:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:34,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:56:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:34,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:56:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:34,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:56:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:34,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:56:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:34,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:56:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:34,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:56:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:34,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 03:56:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:34,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:56:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:34,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-28 03:56:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:56:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 03:56:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-28 03:56:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-28 03:56:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-28 03:56:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:56:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-28 03:56:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:56:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-28 03:56:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 03:56:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-28 03:56:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 03:56:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-28 03:56:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:56:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 03:56:35,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:56:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 03:56:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:56:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:56:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:56:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:56:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:56:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 03:56:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 03:56:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-28 03:56:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-28 03:56:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:56:35,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 03:56:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:56:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-28 03:56:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:56:35,655 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-12-28 03:56:35,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:56:35,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587894564] [2021-12-28 03:56:35,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587894564] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:56:35,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:56:35,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-28 03:56:35,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772126308] [2021-12-28 03:56:35,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:56:35,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-28 03:56:35,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:56:35,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-28 03:56:35,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-28 03:56:35,662 INFO L87 Difference]: Start difference. First operand 4492 states and 6394 transitions. Second operand has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (35), 7 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2021-12-28 03:56:37,690 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 []