./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.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 e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 19:26:08,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 19:26:08,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 19:26:08,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 19:26:08,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 19:26:08,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 19:26:08,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 19:26:08,361 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 19:26:08,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 19:26:08,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 19:26:08,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 19:26:08,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 19:26:08,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 19:26:08,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 19:26:08,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 19:26:08,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 19:26:08,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 19:26:08,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 19:26:08,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 19:26:08,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 19:26:08,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 19:26:08,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 19:26:08,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 19:26:08,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 19:26:08,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 19:26:08,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 19:26:08,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 19:26:08,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 19:26:08,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 19:26:08,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 19:26:08,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 19:26:08,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 19:26:08,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 19:26:08,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 19:26:08,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 19:26:08,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 19:26:08,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 19:26:08,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 19:26:08,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 19:26:08,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 19:26:08,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 19:26:08,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 19:26:08,425 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 19:26:08,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 19:26:08,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 19:26:08,426 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 19:26:08,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 19:26:08,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 19:26:08,427 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 19:26:08,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 19:26:08,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 19:26:08,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 19:26:08,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 19:26:08,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 19:26:08,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 19:26:08,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 19:26:08,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 19:26:08,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 19:26:08,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 19:26:08,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 19:26:08,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 19:26:08,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:26:08,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 19:26:08,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 19:26:08,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 19:26:08,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 19:26:08,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 19:26:08,431 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 19:26:08,431 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 19:26:08,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 19:26:08,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 19:26:08,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2021-11-07 19:26:08,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 19:26:08,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 19:26:08,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 19:26:08,628 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 19:26:08,629 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 19:26:08,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-07 19:26:08,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccb99e1b8/1a67fbae9408430d9d0a539720a6e146/FLAGb6c7a04de [2021-11-07 19:26:09,313 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 19:26:09,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-07 19:26:09,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccb99e1b8/1a67fbae9408430d9d0a539720a6e146/FLAGb6c7a04de [2021-11-07 19:26:09,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccb99e1b8/1a67fbae9408430d9d0a539720a6e146 [2021-11-07 19:26:09,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 19:26:09,440 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 19:26:09,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 19:26:09,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 19:26:09,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 19:26:09,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:26:09" (1/1) ... [2021-11-07 19:26:09,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@781a780e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:09, skipping insertion in model container [2021-11-07 19:26:09,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:26:09" (1/1) ... [2021-11-07 19:26:09,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 19:26:09,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 19:26:11,590 WARN L228 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2021-11-07 19:26:11,593 WARN L228 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2021-11-07 19:26:11,593 WARN L228 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2021-11-07 19:26:11,594 WARN L228 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2021-11-07 19:26:11,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:26:11,691 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 19:26:11,955 WARN L228 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2021-11-07 19:26:11,956 WARN L228 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2021-11-07 19:26:11,957 WARN L228 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2021-11-07 19:26:11,957 WARN L228 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2021-11-07 19:26:11,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:26:12,148 INFO L208 MainTranslator]: Completed translation [2021-11-07 19:26:12,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12 WrapperNode [2021-11-07 19:26:12,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 19:26:12,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 19:26:12,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 19:26:12,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 19:26:12,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:12,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:21,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 19:26:21,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 19:26:21,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 19:26:21,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 19:26:21,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:21,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:22,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:22,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:25,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:26,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:27,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:28,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 19:26:28,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 19:26:28,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 19:26:28,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 19:26:28,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:28,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:26:28,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 19:26:28,233 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) [2021-11-07 19:26:28,246 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 [2021-11-07 19:26:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 19:26:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-11-07 19:26:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 19:26:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 19:26:28,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 19:26:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 19:26:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 19:26:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 19:26:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 19:26:28,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 19:26:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 19:26:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 19:26:28,262 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-07 19:26:28,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 19:26:28,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 19:26:28,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 19:26:28,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 19:26:28,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 19:27:47,888 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 19:27:47,888 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-07 19:27:47,888 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-07 19:27:47,889 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-07 19:27:47,889 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 19:27:47,890 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 19:27:47,890 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-07 19:27:47,890 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 19:27:47,890 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 19:27:47,891 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 19:27:47,894 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 19:27:47,907 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-07 19:27:48,022 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 19:27:48,022 INFO L299 CfgBuilder]: Removed 77872 assume(true) statements. [2021-11-07 19:27:48,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:27:48 BoogieIcfgContainer [2021-11-07 19:27:48,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 19:27:48,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 19:27:48,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 19:27:48,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 19:27:48,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:26:09" (1/3) ... [2021-11-07 19:27:48,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a144c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:27:48, skipping insertion in model container [2021-11-07 19:27:48,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (2/3) ... [2021-11-07 19:27:48,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a144c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:27:48, skipping insertion in model container [2021-11-07 19:27:48,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:27:48" (3/3) ... [2021-11-07 19:27:48,072 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-07 19:27:48,075 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 19:27:48,075 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-07 19:27:48,209 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 19:27:48,213 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 [2021-11-07 19:27:48,213 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 19:27:48,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 57290 states, 57285 states have (on average 1.2588984900061098) internal successors, (72116), 57289 states have internal predecessors, (72116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:27:48,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 19:27:48,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:27:48,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:27:48,954 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 19:27:48,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:27:48,969 INFO L85 PathProgramCache]: Analyzing trace with hash -746839052, now seen corresponding path program 1 times [2021-11-07 19:27:48,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:27:48,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175597730] [2021-11-07 19:27:48,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:27:48,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:27:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:27:49,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:27:49,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:27:49,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175597730] [2021-11-07 19:27:49,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175597730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:27:49,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:27:49,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:27:49,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828166175] [2021-11-07 19:27:49,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:27:49,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:27:49,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:27:49,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:27:49,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:27:49,629 INFO L87 Difference]: Start difference. First operand has 57290 states, 57285 states have (on average 1.2588984900061098) internal successors, (72116), 57289 states have internal predecessors, (72116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:27:52,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:27:52,832 INFO L93 Difference]: Finished difference Result 169050 states and 211931 transitions. [2021-11-07 19:27:52,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:27:52,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-07 19:27:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:27:53,193 INFO L225 Difference]: With dead ends: 169050 [2021-11-07 19:27:53,194 INFO L226 Difference]: Without dead ends: 110356 [2021-11-07 19:27:53,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:27:53,320 INFO L933 BasicCegarLoop]: 69292 mSDtfsCounter, 69017 mSDsluCounter, 69245 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 703.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69017 SdHoareTripleChecker+Valid, 138537 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 428.67ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 776.78ms IncrementalHoareTripleChecker+Time [2021-11-07 19:27:53,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69017 Valid, 138537 Invalid, 34 Unknown, 0 Unchecked, 428.67ms Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 776.78ms Time] [2021-11-07 19:27:53,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110356 states. [2021-11-07 19:27:55,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110356 to 110352. [2021-11-07 19:27:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110352 states, 110347 states have (on average 1.2247727622862425) internal successors, (135150), 110351 states have internal predecessors, (135150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:27:56,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110352 states to 110352 states and 135150 transitions. [2021-11-07 19:27:56,061 INFO L78 Accepts]: Start accepts. Automaton has 110352 states and 135150 transitions. Word has length 66 [2021-11-07 19:27:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:27:56,063 INFO L470 AbstractCegarLoop]: Abstraction has 110352 states and 135150 transitions. [2021-11-07 19:27:56,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:27:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 110352 states and 135150 transitions. [2021-11-07 19:27:56,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 19:27:56,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:27:56,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:27:56,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 19:27:56,074 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 19:27:56,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:27:56,075 INFO L85 PathProgramCache]: Analyzing trace with hash -597713067, now seen corresponding path program 1 times [2021-11-07 19:27:56,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:27:56,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180721552] [2021-11-07 19:27:56,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:27:56,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:27:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:27:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:27:56,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:27:56,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180721552] [2021-11-07 19:27:56,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180721552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:27:56,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:27:56,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:27:56,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488029917] [2021-11-07 19:27:56,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:27:56,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:27:56,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:27:56,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:27:56,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:27:56,296 INFO L87 Difference]: Start difference. First operand 110352 states and 135150 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:27:59,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:27:59,571 INFO L93 Difference]: Finished difference Result 256432 states and 314082 transitions. [2021-11-07 19:27:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:27:59,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-07 19:27:59,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:27:59,986 INFO L225 Difference]: With dead ends: 256432 [2021-11-07 19:27:59,986 INFO L226 Difference]: Without dead ends: 146212 [2021-11-07 19:28:00,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:28:00,158 INFO L933 BasicCegarLoop]: 67662 mSDtfsCounter, 55695 mSDsluCounter, 67610 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 508.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55695 SdHoareTripleChecker+Valid, 135272 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 117.22ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 627.85ms IncrementalHoareTripleChecker+Time [2021-11-07 19:28:00,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55695 Valid, 135272 Invalid, 106 Unknown, 0 Unchecked, 117.22ms Time], IncrementalHoareTripleChecker [21 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 627.85ms Time] [2021-11-07 19:28:00,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146212 states. [2021-11-07 19:28:02,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146212 to 146188. [2021-11-07 19:28:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146188 states, 146183 states have (on average 1.2246704473160355) internal successors, (179026), 146187 states have internal predecessors, (179026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:28:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146188 states to 146188 states and 179026 transitions. [2021-11-07 19:28:03,282 INFO L78 Accepts]: Start accepts. Automaton has 146188 states and 179026 transitions. Word has length 84 [2021-11-07 19:28:03,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:28:03,282 INFO L470 AbstractCegarLoop]: Abstraction has 146188 states and 179026 transitions. [2021-11-07 19:28:03,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:28:03,283 INFO L276 IsEmpty]: Start isEmpty. Operand 146188 states and 179026 transitions. [2021-11-07 19:28:03,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 19:28:03,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:28:03,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:28:03,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 19:28:03,288 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 19:28:03,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:28:03,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1751852312, now seen corresponding path program 1 times [2021-11-07 19:28:03,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:28:03,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620456151] [2021-11-07 19:28:03,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:28:03,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:28:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:28:03,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:28:03,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:28:03,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620456151] [2021-11-07 19:28:03,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620456151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:28:03,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:28:03,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:28:03,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492646817] [2021-11-07 19:28:03,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:28:03,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:28:03,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:28:03,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:28:03,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:28:03,513 INFO L87 Difference]: Start difference. First operand 146188 states and 179026 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:28:05,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:28:09,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:28:09,807 INFO L93 Difference]: Finished difference Result 380361 states and 465856 transitions. [2021-11-07 19:28:09,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:28:09,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 19:28:09,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:28:10,450 INFO L225 Difference]: With dead ends: 380361 [2021-11-07 19:28:10,450 INFO L226 Difference]: Without dead ends: 234305 [2021-11-07 19:28:10,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:28:10,719 INFO L933 BasicCegarLoop]: 67672 mSDtfsCounter, 62413 mSDsluCounter, 67638 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2087.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62413 SdHoareTripleChecker+Valid, 135310 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 116.13ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2207.79ms IncrementalHoareTripleChecker+Time [2021-11-07 19:28:10,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62413 Valid, 135310 Invalid, 66 Unknown, 0 Unchecked, 116.13ms Time], IncrementalHoareTripleChecker [13 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 2207.79ms Time] [2021-11-07 19:28:10,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234305 states. [2021-11-07 19:28:14,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234305 to 234265. [2021-11-07 19:28:15,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234265 states, 234260 states have (on average 1.2247588149918893) internal successors, (286912), 234264 states have internal predecessors, (286912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:28:15,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234265 states to 234265 states and 286912 transitions. [2021-11-07 19:28:15,705 INFO L78 Accepts]: Start accepts. Automaton has 234265 states and 286912 transitions. Word has length 87 [2021-11-07 19:28:15,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:28:15,706 INFO L470 AbstractCegarLoop]: Abstraction has 234265 states and 286912 transitions. [2021-11-07 19:28:15,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:28:15,706 INFO L276 IsEmpty]: Start isEmpty. Operand 234265 states and 286912 transitions. [2021-11-07 19:28:15,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 19:28:15,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:28:15,716 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-07 19:28:15,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 19:28:15,716 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-07 19:28:15,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:28:15,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1524744813, now seen corresponding path program 1 times [2021-11-07 19:28:15,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:28:15,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341627037] [2021-11-07 19:28:15,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:28:15,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:28:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:28:16,469 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:28:16,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:28:16,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341627037] [2021-11-07 19:28:16,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341627037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:28:16,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:28:16,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:28:16,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047799446] [2021-11-07 19:28:16,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:28:16,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:28:16,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:28:16,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:28:16,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:28:16,472 INFO L87 Difference]: Start difference. First operand 234265 states and 286912 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)