./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.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 3151b52776d19e2fb44a194d473cc3c38f1eb2b68210144e38eb8a78a9b4d4f9 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 10:55:59,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 10:55:59,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 10:55:59,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 10:55:59,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 10:55:59,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 10:55:59,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 10:55:59,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 10:55:59,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 10:55:59,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 10:55:59,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 10:55:59,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 10:55:59,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 10:55:59,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 10:55:59,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 10:55:59,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 10:55:59,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 10:55:59,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 10:55:59,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 10:55:59,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 10:55:59,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 10:55:59,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 10:55:59,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 10:55:59,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 10:55:59,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 10:55:59,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 10:55:59,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 10:55:59,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 10:55:59,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 10:55:59,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 10:55:59,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 10:55:59,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 10:55:59,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 10:55:59,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 10:55:59,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 10:55:59,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 10:55:59,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 10:55:59,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 10:55:59,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 10:55:59,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 10:55:59,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 10:55:59,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 10:55:59,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 10:55:59,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 10:55:59,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 10:55:59,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 10:55:59,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 10:55:59,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 10:55:59,584 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 10:55:59,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 10:55:59,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 10:55:59,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 10:55:59,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 10:55:59,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 10:55:59,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 10:55:59,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 10:55:59,586 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 10:55:59,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 10:55:59,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 10:55:59,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 10:55:59,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 10:55:59,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:55:59,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 10:55:59,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 10:55:59,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 10:55:59,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 10:55:59,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 10:55:59,588 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 10:55:59,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 10:55:59,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 10:55:59,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 10:55:59,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3151b52776d19e2fb44a194d473cc3c38f1eb2b68210144e38eb8a78a9b4d4f9 [2021-11-04 10:55:59,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 10:55:59,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 10:55:59,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 10:55:59,770 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 10:55:59,770 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 10:55:59,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-04 10:55:59,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb6f823c4/f0212b700259470c9ba10a8e0f36ba53/FLAGe69b7d58d [2021-11-04 10:56:00,417 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 10:56:00,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-04 10:56:00,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb6f823c4/f0212b700259470c9ba10a8e0f36ba53/FLAGe69b7d58d [2021-11-04 10:56:00,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb6f823c4/f0212b700259470c9ba10a8e0f36ba53 [2021-11-04 10:56:00,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 10:56:00,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 10:56:00,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 10:56:00,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 10:56:00,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 10:56:00,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:56:00" (1/1) ... [2021-11-04 10:56:00,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c5313d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:00, skipping insertion in model container [2021-11-04 10:56:00,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:56:00" (1/1) ... [2021-11-04 10:56:00,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 10:56:00,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 10:56:02,631 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-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373299,373312] [2021-11-04 10:56:02,633 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-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373446,373459] [2021-11-04 10:56:02,634 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-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373585,373598] [2021-11-04 10:56:02,634 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-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373743,373756] [2021-11-04 10:56:02,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:56:02,710 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 10:56:02,979 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-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373299,373312] [2021-11-04 10:56:02,979 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-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373446,373459] [2021-11-04 10:56:02,980 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-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373585,373598] [2021-11-04 10:56:02,980 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-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i[373743,373756] [2021-11-04 10:56:02,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:56:03,230 INFO L208 MainTranslator]: Completed translation [2021-11-04 10:56:03,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03 WrapperNode [2021-11-04 10:56:03,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 10:56:03,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 10:56:03,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 10:56:03,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 10:56:03,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (1/1) ... [2021-11-04 10:56:03,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (1/1) ... [2021-11-04 10:56:06,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 10:56:06,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 10:56:06,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 10:56:06,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 10:56:06,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (1/1) ... [2021-11-04 10:56:06,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (1/1) ... [2021-11-04 10:56:06,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (1/1) ... [2021-11-04 10:56:06,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (1/1) ... [2021-11-04 10:56:07,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (1/1) ... [2021-11-04 10:56:08,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (1/1) ... [2021-11-04 10:56:08,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (1/1) ... [2021-11-04 10:56:09,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 10:56:09,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 10:56:09,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 10:56:09,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 10:56:09,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (1/1) ... [2021-11-04 10:56:09,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:56:09,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 10:56:09,079 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) [2021-11-04 10:56:09,109 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 [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 10:56:09,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 10:56:09,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 11:06:18,598 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 11:06:18,598 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 11:06:18,599 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-04 11:06:18,599 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-04 11:06:18,599 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-04 11:06:18,599 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 11:06:18,599 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-04 11:06:18,599 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 11:06:18,600 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 11:06:18,604 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 11:06:18,605 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 11:06:18,607 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-04 11:06:18,607 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-04 11:06:18,664 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 11:06:18,665 INFO L299 CfgBuilder]: Removed 25564 assume(true) statements. [2021-11-04 11:06:18,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 11:06:18 BoogieIcfgContainer [2021-11-04 11:06:18,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 11:06:18,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 11:06:18,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 11:06:18,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 11:06:18,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:56:00" (1/3) ... [2021-11-04 11:06:18,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e9016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 11:06:18, skipping insertion in model container [2021-11-04 11:06:18,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:56:03" (2/3) ... [2021-11-04 11:06:18,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e9016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 11:06:18, skipping insertion in model container [2021-11-04 11:06:18,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 11:06:18" (3/3) ... [2021-11-04 11:06:18,690 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-rhine.cil.i [2021-11-04 11:06:18,697 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 11:06:18,697 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-11-04 11:06:18,788 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 11:06:18,793 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 [2021-11-04 11:06:18,793 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-04 11:06:19,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 20880 states, 20875 states have (on average 1.310754491017964) internal successors, (27362), 20879 states have internal predecessors, (27362), 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) [2021-11-04 11:06:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-04 11:06:19,287 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:06:19,288 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] [2021-11-04 11:06:19,288 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)] === [2021-11-04 11:06:19,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:06:19,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1280611, now seen corresponding path program 1 times [2021-11-04 11:06:19,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:06:19,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561593767] [2021-11-04 11:06:19,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:06:19,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:06:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:06:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:06:20,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:06:20,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561593767] [2021-11-04 11:06:20,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561593767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:06:20,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:06:20,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:06:20,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490572097] [2021-11-04 11:06:20,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:06:20,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:06:20,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:06:20,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:06:20,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:06:20,302 INFO L87 Difference]: Start difference. First operand has 20880 states, 20875 states have (on average 1.310754491017964) internal successors, (27362), 20879 states have internal predecessors, (27362), 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 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-04 11:06:22,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:07:49,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 11:07:49,140 INFO L93 Difference]: Finished difference Result 62042 states and 81295 transitions. [2021-11-04 11:07:49,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 11:07:49,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-04 11:07:49,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 11:07:49,269 INFO L225 Difference]: With dead ends: 62042 [2021-11-04 11:07:49,269 INFO L226 Difference]: Without dead ends: 40556 [2021-11-04 11:07:49,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:07:49,315 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 26639 mSDsluCounter, 26844 mSDsCounter, 0 mSdLazyCounter, 52988 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76932.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26639 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 52998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 161.05ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52988 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86159.69ms IncrementalHoareTripleChecker+Time [2021-11-04 11:07:49,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26639 Valid, 791 Invalid, 52998 Unknown, 0 Unchecked, 161.05ms Time], IncrementalHoareTripleChecker [9 Valid, 52988 Invalid, 1 Unknown, 0 Unchecked, 86159.69ms Time] [2021-11-04 11:07:49,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40556 states. [2021-11-04 11:07:50,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40556 to 40552. [2021-11-04 11:07:50,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40552 states, 40547 states have (on average 1.282782943251042) internal successors, (52013), 40551 states have internal predecessors, (52013), 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) [2021-11-04 11:07:50,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40552 states to 40552 states and 52013 transitions. [2021-11-04 11:07:50,490 INFO L78 Accepts]: Start accepts. Automaton has 40552 states and 52013 transitions. Word has length 60 [2021-11-04 11:07:50,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 11:07:50,492 INFO L470 AbstractCegarLoop]: Abstraction has 40552 states and 52013 transitions. [2021-11-04 11:07:50,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-04 11:07:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 40552 states and 52013 transitions. [2021-11-04 11:07:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-04 11:07:50,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:07:50,503 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] [2021-11-04 11:07:50,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 11:07:50,504 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)] === [2021-11-04 11:07:50,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:07:50,505 INFO L85 PathProgramCache]: Analyzing trace with hash 816032526, now seen corresponding path program 1 times [2021-11-04 11:07:50,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:07:50,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147908159] [2021-11-04 11:07:50,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:07:50,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:07:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:07:51,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:07:51,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:07:51,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147908159] [2021-11-04 11:07:51,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147908159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:07:51,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:07:51,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:07:51,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307360683] [2021-11-04 11:07:51,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:07:51,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:07:51,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:07:51,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:07:51,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:07:51,037 INFO L87 Difference]: Start difference. First operand 40552 states and 52013 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-04 11:07:53,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 11:09:07,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 11:09:07,780 INFO L93 Difference]: Finished difference Result 95694 states and 122723 transitions. [2021-11-04 11:09:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 11:09:07,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2021-11-04 11:09:07,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 11:09:07,913 INFO L225 Difference]: With dead ends: 95694 [2021-11-04 11:09:07,914 INFO L226 Difference]: Without dead ends: 55258 [2021-11-04 11:09:07,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:09:07,980 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 22369 mSDsluCounter, 26047 mSDsCounter, 0 mSdLazyCounter, 52217 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66161.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22369 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 52239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 105.19ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 52217 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74675.09ms IncrementalHoareTripleChecker+Time [2021-11-04 11:09:07,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22369 Valid, 0 Invalid, 52239 Unknown, 0 Unchecked, 105.19ms Time], IncrementalHoareTripleChecker [21 Valid, 52217 Invalid, 1 Unknown, 0 Unchecked, 74675.09ms Time] [2021-11-04 11:09:08,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55258 states. [2021-11-04 11:09:08,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55258 to 55234. [2021-11-04 11:09:09,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55234 states, 55229 states have (on average 1.2816817251806116) internal successors, (70786), 55233 states have internal predecessors, (70786), 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) [2021-11-04 11:09:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55234 states to 55234 states and 70786 transitions. [2021-11-04 11:09:09,154 INFO L78 Accepts]: Start accepts. Automaton has 55234 states and 70786 transitions. Word has length 80 [2021-11-04 11:09:09,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 11:09:09,156 INFO L470 AbstractCegarLoop]: Abstraction has 55234 states and 70786 transitions. [2021-11-04 11:09:09,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-04 11:09:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 55234 states and 70786 transitions. [2021-11-04 11:09:09,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-04 11:09:09,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 11:09:09,163 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] [2021-11-04 11:09:09,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 11:09:09,164 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)] === [2021-11-04 11:09:09,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 11:09:09,164 INFO L85 PathProgramCache]: Analyzing trace with hash -546815309, now seen corresponding path program 1 times [2021-11-04 11:09:09,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 11:09:09,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776739494] [2021-11-04 11:09:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 11:09:09,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 11:09:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 11:09:09,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 11:09:09,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 11:09:09,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776739494] [2021-11-04 11:09:09,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776739494] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 11:09:09,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 11:09:09,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 11:09:09,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800182190] [2021-11-04 11:09:09,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 11:09:09,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 11:09:09,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 11:09:09,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 11:09:09,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 11:09:09,735 INFO L87 Difference]: Start difference. First operand 55234 states and 70786 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-04 11:09:11,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15