./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.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 5eb3f0f7fbd0ab57546a0ac02256a38ed05a9424bb7a81ac298c225eddd7bc79 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:36:14,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:36:14,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:36:14,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:36:14,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:36:14,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:36:14,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:36:14,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:36:14,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:36:14,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:36:14,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:36:14,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:36:14,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:36:14,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:36:14,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:36:14,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:36:14,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:36:14,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:36:14,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:36:14,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:36:14,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:36:14,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:36:14,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:36:14,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:36:14,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:36:14,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:36:14,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:36:14,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:36:14,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:36:14,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:36:14,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:36:14,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:36:14,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:36:14,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:36:14,280 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:36:14,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:36:14,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:36:14,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:36:14,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:36:14,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:36:14,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:36:14,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:36:14,301 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:36:14,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:36:14,304 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:36:14,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:36:14,305 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:36:14,305 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:36:14,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:36:14,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:36:14,306 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:36:14,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:36:14,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:36:14,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:36:14,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:36:14,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:36:14,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:36:14,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:36:14,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:36:14,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:36:14,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:36:14,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:36:14,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:36:14,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:36:14,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:36:14,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:36:14,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:36:14,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:36:14,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:36:14,309 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:36:14,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:36:14,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:36:14,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:36:14,310 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eb3f0f7fbd0ab57546a0ac02256a38ed05a9424bb7a81ac298c225eddd7bc79 [2021-12-22 14:36:14,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:36:14,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:36:14,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:36:14,535 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:36:14,536 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:36:14,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i [2021-12-22 14:36:14,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cee3f1061/41a7dfb57d174eaca4bea84490c394bd/FLAGbbeeb64c6 [2021-12-22 14:36:15,206 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:36:15,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i [2021-12-22 14:36:15,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cee3f1061/41a7dfb57d174eaca4bea84490c394bd/FLAGbbeeb64c6 [2021-12-22 14:36:15,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cee3f1061/41a7dfb57d174eaca4bea84490c394bd [2021-12-22 14:36:15,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:36:15,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:36:15,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:36:15,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:36:15,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:36:15,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:36:15" (1/1) ... [2021-12-22 14:36:15,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f0c68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:15, skipping insertion in model container [2021-12-22 14:36:15,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:36:15" (1/1) ... [2021-12-22 14:36:15,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:36:15,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:36:15,892 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i[158290,158303] [2021-12-22 14:36:16,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:36:16,514 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:36:16,597 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i[158290,158303] [2021-12-22 14:36:16,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:36:16,861 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:36:16,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16 WrapperNode [2021-12-22 14:36:16,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:36:16,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:36:16,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:36:16,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:36:16,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (1/1) ... [2021-12-22 14:36:16,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (1/1) ... [2021-12-22 14:36:17,031 INFO L137 Inliner]: procedures = 212, calls = 2651, calls flagged for inlining = 91, calls inlined = 91, statements flattened = 5842 [2021-12-22 14:36:17,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:36:17,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:36:17,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:36:17,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:36:17,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (1/1) ... [2021-12-22 14:36:17,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (1/1) ... [2021-12-22 14:36:17,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (1/1) ... [2021-12-22 14:36:17,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (1/1) ... [2021-12-22 14:36:17,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (1/1) ... [2021-12-22 14:36:17,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (1/1) ... [2021-12-22 14:36:17,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (1/1) ... [2021-12-22 14:36:17,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:36:17,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:36:17,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:36:17,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:36:17,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (1/1) ... [2021-12-22 14:36:17,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:36:17,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:36:17,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:36:17,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:36:17,357 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2021-12-22 14:36:17,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2021-12-22 14:36:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 14:36:17,358 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 14:36:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:36:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:36:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:36:17,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:36:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-22 14:36:17,358 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-22 14:36:17,358 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2021-12-22 14:36:17,359 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2021-12-22 14:36:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2021-12-22 14:36:17,359 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2021-12-22 14:36:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:36:17,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:36:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2021-12-22 14:36:17,359 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2021-12-22 14:36:17,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2021-12-22 14:36:17,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2021-12-22 14:36:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ioctl [2021-12-22 14:36:17,360 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ioctl [2021-12-22 14:36:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2021-12-22 14:36:17,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2021-12-22 14:36:17,360 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2021-12-22 14:36:17,360 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2021-12-22 14:36:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:36:17,361 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:36:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:36:17,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:36:17,361 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_tx_fixup [2021-12-22 14:36:17,361 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_tx_fixup [2021-12-22 14:36:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:36:17,362 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:36:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:36:17,362 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:36:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2021-12-22 14:36:17,362 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2021-12-22 14:36:17,362 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_change_mtu [2021-12-22 14:36:17,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_change_mtu [2021-12-22 14:36:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2021-12-22 14:36:17,363 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2021-12-22 14:36:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:36:17,363 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:36:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:36:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2021-12-22 14:36:17,363 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2021-12-22 14:36:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-22 14:36:17,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-22 14:36:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-22 14:36:17,364 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-22 14:36:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:36:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2021-12-22 14:36:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 14:36:17,365 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 14:36:17,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-22 14:36:17,365 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:36:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:36:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2021-12-22 14:36:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2021-12-22 14:36:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2021-12-22 14:36:17,366 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2021-12-22 14:36:17,366 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2021-12-22 14:36:17,367 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2021-12-22 14:36:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:36:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2021-12-22 14:36:17,367 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2021-12-22 14:36:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:36:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2021-12-22 14:36:17,367 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2021-12-22 14:36:17,367 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2021-12-22 14:36:17,367 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2021-12-22 14:36:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2021-12-22 14:36:17,368 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2021-12-22 14:36:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:36:17,368 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:36:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:36:17,368 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:36:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:36:17,368 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:36:17,368 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 14:36:17,369 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 14:36:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2021-12-22 14:36:17,369 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2021-12-22 14:36:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:36:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:36:17,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:36:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-12-22 14:36:17,369 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-12-22 14:36:17,369 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2021-12-22 14:36:17,370 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2021-12-22 14:36:17,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:36:17,370 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2021-12-22 14:36:17,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2021-12-22 14:36:17,370 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2021-12-22 14:36:17,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2021-12-22 14:36:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:36:17,371 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-12-22 14:36:17,371 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-12-22 14:36:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-12-22 14:36:17,372 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-12-22 14:36:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2021-12-22 14:36:17,372 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2021-12-22 14:36:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 14:36:17,372 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 14:36:17,373 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2021-12-22 14:36:17,373 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2021-12-22 14:36:17,373 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-12-22 14:36:17,373 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-12-22 14:36:17,373 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-12-22 14:36:17,373 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2021-12-22 14:36:17,373 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:36:17,373 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:36:17,374 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2021-12-22 14:36:17,374 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2021-12-22 14:36:17,374 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2021-12-22 14:36:17,374 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2021-12-22 14:36:17,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:36:17,375 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-22 14:36:17,377 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-22 14:36:17,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:36:17,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:36:17,377 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-12-22 14:36:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:36:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2021-12-22 14:36:17,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2021-12-22 14:36:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:36:17,379 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_status [2021-12-22 14:36:17,383 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_status [2021-12-22 14:36:17,383 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 14:36:17,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 14:36:17,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:36:17,383 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2021-12-22 14:36:17,384 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2021-12-22 14:36:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2021-12-22 14:36:17,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2021-12-22 14:36:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2021-12-22 14:36:17,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2021-12-22 14:36:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2021-12-22 14:36:17,384 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2021-12-22 14:36:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2021-12-22 14:36:17,384 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2021-12-22 14:36:17,384 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_manage_power [2021-12-22 14:36:17,385 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_manage_power [2021-12-22 14:36:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_fixup [2021-12-22 14:36:17,385 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_fixup [2021-12-22 14:36:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2021-12-22 14:36:17,385 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2021-12-22 14:36:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:36:17,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:36:17,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:36:17,934 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:36:17,936 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:36:18,181 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:36:25,566 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:36:25,577 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:36:25,577 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:36:25,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:36:25 BoogieIcfgContainer [2021-12-22 14:36:25,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:36:25,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:36:25,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:36:25,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:36:25,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:36:15" (1/3) ... [2021-12-22 14:36:25,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252c6f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:36:25, skipping insertion in model container [2021-12-22 14:36:25,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:36:16" (2/3) ... [2021-12-22 14:36:25,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252c6f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:36:25, skipping insertion in model container [2021-12-22 14:36:25,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:36:25" (3/3) ... [2021-12-22 14:36:25,586 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i [2021-12-22 14:36:25,589 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:36:25,589 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:36:25,633 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:36:25,645 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:36:25,646 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:36:25,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 1455 states, 1058 states have (on average 1.4130434782608696) internal successors, (1495), 1074 states have internal predecessors, (1495), 331 states have call successors, (331), 65 states have call predecessors, (331), 64 states have return successors, (325), 325 states have call predecessors, (325), 325 states have call successors, (325) [2021-12-22 14:36:25,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-22 14:36:25,696 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:36:25,696 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:36:25,697 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:36:25,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:36:25,700 INFO L85 PathProgramCache]: Analyzing trace with hash 2069414914, now seen corresponding path program 1 times [2021-12-22 14:36:25,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:36:25,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363256022] [2021-12-22 14:36:25,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:36:25,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:36:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:36:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:36:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:36:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:36:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:36:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:36:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:36:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:36:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:36:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:36:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:36:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:36:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 14:36:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:36:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-22 14:36:26,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:36:26,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363256022] [2021-12-22 14:36:26,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363256022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:36:26,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:36:26,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:36:26,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068001818] [2021-12-22 14:36:26,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:36:26,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:36:26,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:36:26,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:36:26,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:36:26,400 INFO L87 Difference]: Start difference. First operand has 1455 states, 1058 states have (on average 1.4130434782608696) internal successors, (1495), 1074 states have internal predecessors, (1495), 331 states have call successors, (331), 65 states have call predecessors, (331), 64 states have return successors, (325), 325 states have call predecessors, (325), 325 states have call successors, (325) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-22 14:36:32,253 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 [] [2021-12-22 14:36:34,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:36,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:38,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:40,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:42,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:44,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:48,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:50,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:52,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:54,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:56,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:36:58,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:00,691 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 [] [2021-12-22 14:37:01,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:37:01,418 INFO L93 Difference]: Finished difference Result 4437 states and 6695 transitions. [2021-12-22 14:37:01,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:37:01,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2021-12-22 14:37:01,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:37:01,498 INFO L225 Difference]: With dead ends: 4437 [2021-12-22 14:37:01,499 INFO L226 Difference]: Without dead ends: 2951 [2021-12-22 14:37:01,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:37:01,520 INFO L933 BasicCegarLoop]: 2335 mSDtfsCounter, 2526 mSDsluCounter, 4541 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 1561 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2677 SdHoareTripleChecker+Valid, 6876 SdHoareTripleChecker+Invalid, 3349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1561 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2021-12-22 14:37:01,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2677 Valid, 6876 Invalid, 3349 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1561 Valid, 1774 Invalid, 14 Unknown, 0 Unchecked, 34.6s Time] [2021-12-22 14:37:01,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2021-12-22 14:37:01,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2796. [2021-12-22 14:37:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2796 states, 2047 states have (on average 1.406448461162677) internal successors, (2879), 2058 states have internal predecessors, (2879), 622 states have call successors, (622), 127 states have call predecessors, (622), 126 states have return successors, (616), 616 states have call predecessors, (616), 616 states have call successors, (616) [2021-12-22 14:37:01,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 4117 transitions. [2021-12-22 14:37:01,732 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 4117 transitions. Word has length 95 [2021-12-22 14:37:01,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:37:01,733 INFO L470 AbstractCegarLoop]: Abstraction has 2796 states and 4117 transitions. [2021-12-22 14:37:01,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-22 14:37:01,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 4117 transitions. [2021-12-22 14:37:01,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-22 14:37:01,740 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:37:01,740 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:37:01,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:37:01,741 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:37:01,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:37:01,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1074232853, now seen corresponding path program 1 times [2021-12-22 14:37:01,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:37:01,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590386235] [2021-12-22 14:37:01,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:37:01,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:37:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:01,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:37:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:01,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:37:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:37:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:37:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:37:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:37:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:37:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:37:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:37:02,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:37:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:37:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:37:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 14:37:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:02,107 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-22 14:37:02,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:37:02,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590386235] [2021-12-22 14:37:02,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590386235] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:37:02,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:37:02,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:37:02,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130287859] [2021-12-22 14:37:02,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:37:02,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:37:02,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:37:02,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:37:02,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:37:02,110 INFO L87 Difference]: Start difference. First operand 2796 states and 4117 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-22 14:37:05,045 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 [] [2021-12-22 14:37:07,065 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:09,693 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:11,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:13,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:15,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:17,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:19,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:23,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:37:23,253 INFO L93 Difference]: Finished difference Result 7429 states and 10952 transitions. [2021-12-22 14:37:23,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:37:23,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2021-12-22 14:37:23,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:37:23,276 INFO L225 Difference]: With dead ends: 7429 [2021-12-22 14:37:23,276 INFO L226 Difference]: Without dead ends: 4662 [2021-12-22 14:37:23,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 14:37:23,289 INFO L933 BasicCegarLoop]: 2170 mSDtfsCounter, 1661 mSDsluCounter, 4273 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 1197 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 6443 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1197 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-12-22 14:37:23,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1762 Valid, 6443 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1197 Valid, 1601 Invalid, 7 Unknown, 0 Unchecked, 20.9s Time] [2021-12-22 14:37:23,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4662 states. [2021-12-22 14:37:23,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4662 to 4460. [2021-12-22 14:37:23,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4460 states, 3274 states have (on average 1.40470372632865) internal successors, (4599), 3287 states have internal predecessors, (4599), 965 states have call successors, (965), 221 states have call predecessors, (965), 220 states have return successors, (959), 959 states have call predecessors, (959), 959 states have call successors, (959) [2021-12-22 14:37:23,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4460 states to 4460 states and 6523 transitions. [2021-12-22 14:37:23,514 INFO L78 Accepts]: Start accepts. Automaton has 4460 states and 6523 transitions. Word has length 100 [2021-12-22 14:37:23,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:37:23,515 INFO L470 AbstractCegarLoop]: Abstraction has 4460 states and 6523 transitions. [2021-12-22 14:37:23,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-22 14:37:23,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4460 states and 6523 transitions. [2021-12-22 14:37:23,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-22 14:37:23,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:37:23,518 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:37:23,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:37:23,518 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:37:23,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:37:23,519 INFO L85 PathProgramCache]: Analyzing trace with hash -283100940, now seen corresponding path program 1 times [2021-12-22 14:37:23,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:37:23,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46969520] [2021-12-22 14:37:23,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:37:23,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:37:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:37:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:37:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:37:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:37:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:37:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:37:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:37:23,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:37:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-22 14:37:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-22 14:37:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-22 14:37:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 14:37:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-22 14:37:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-22 14:37:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,864 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2021-12-22 14:37:23,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:37:23,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46969520] [2021-12-22 14:37:23,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46969520] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:37:23,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:37:23,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:37:23,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57684397] [2021-12-22 14:37:23,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:37:23,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:37:23,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:37:23,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:37:23,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:37:23,868 INFO L87 Difference]: Start difference. First operand 4460 states and 6523 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2021-12-22 14:37:26,652 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 []