./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-renesas-sh_eth.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-renesas-sh_eth.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 03b8f9b46620702f9d70148f7a771db4d67901c7aab24ac912231ee535bedd76 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 21:03:20,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 21:03:20,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 21:03:20,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 21:03:20,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 21:03:20,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 21:03:20,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 21:03:20,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 21:03:20,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 21:03:20,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 21:03:20,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 21:03:20,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 21:03:20,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 21:03:20,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 21:03:20,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 21:03:20,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 21:03:20,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 21:03:20,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 21:03:20,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 21:03:20,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 21:03:20,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 21:03:20,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 21:03:20,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 21:03:20,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 21:03:20,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 21:03:20,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 21:03:20,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 21:03:20,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 21:03:20,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 21:03:20,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 21:03:20,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 21:03:20,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 21:03:20,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 21:03:20,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 21:03:20,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 21:03:20,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 21:03:20,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 21:03:20,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 21:03:20,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 21:03:20,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 21:03:20,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 21:03:20,253 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 21:03:20,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 21:03:20,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 21:03:20,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 21:03:20,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 21:03:20,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 21:03:20,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 21:03:20,287 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 21:03:20,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 21:03:20,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 21:03:20,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 21:03:20,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 21:03:20,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 21:03:20,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 21:03:20,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 21:03:20,289 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 21:03:20,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 21:03:20,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 21:03:20,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 21:03:20,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 21:03:20,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 21:03:20,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 21:03:20,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 21:03:20,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 21:03:20,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 21:03:20,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 21:03:20,292 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 21:03:20,292 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 21:03:20,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 21:03:20,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 21:03:20,292 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03b8f9b46620702f9d70148f7a771db4d67901c7aab24ac912231ee535bedd76 [2021-11-05 21:03:20,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 21:03:20,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 21:03:20,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 21:03:20,599 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 21:03:20,600 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 21:03:20,601 INFO L432 ainManager$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-renesas-sh_eth.cil.i [2021-11-05 21:03:20,655 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee6f4b6e/24c94bbe986d4f908a9887ec39d53a71/FLAGc14cb104a [2021-11-05 21:03:21,551 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 21:03:21,552 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-renesas-sh_eth.cil.i [2021-11-05 21:03:21,624 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee6f4b6e/24c94bbe986d4f908a9887ec39d53a71/FLAGc14cb104a [2021-11-05 21:03:21,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee6f4b6e/24c94bbe986d4f908a9887ec39d53a71 [2021-11-05 21:03:21,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 21:03:21,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 21:03:21,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 21:03:21,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 21:03:21,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 21:03:21,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:03:21" (1/1) ... [2021-11-05 21:03:21,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1781fb0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:21, skipping insertion in model container [2021-11-05 21:03:21,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:03:21" (1/1) ... [2021-11-05 21:03:21,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 21:03:22,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 21:03:25,470 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-renesas-sh_eth.cil.i[510265,510278] [2021-11-05 21:03:25,472 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-renesas-sh_eth.cil.i[510412,510425] [2021-11-05 21:03:25,473 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-renesas-sh_eth.cil.i[510551,510564] [2021-11-05 21:03:25,473 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-renesas-sh_eth.cil.i[510709,510722] [2021-11-05 21:03:25,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 21:03:25,609 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 21:03:26,026 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-renesas-sh_eth.cil.i[510265,510278] [2021-11-05 21:03:26,027 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-renesas-sh_eth.cil.i[510412,510425] [2021-11-05 21:03:26,027 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-renesas-sh_eth.cil.i[510551,510564] [2021-11-05 21:03:26,028 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-renesas-sh_eth.cil.i[510709,510722] [2021-11-05 21:03:26,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 21:03:26,286 INFO L208 MainTranslator]: Completed translation [2021-11-05 21:03:26,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26 WrapperNode [2021-11-05 21:03:26,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 21:03:26,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 21:03:26,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 21:03:26,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 21:03:26,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (1/1) ... [2021-11-05 21:03:26,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (1/1) ... [2021-11-05 21:03:30,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 21:03:30,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 21:03:30,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 21:03:30,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 21:03:30,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (1/1) ... [2021-11-05 21:03:30,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (1/1) ... [2021-11-05 21:03:31,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (1/1) ... [2021-11-05 21:03:31,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (1/1) ... [2021-11-05 21:03:33,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (1/1) ... [2021-11-05 21:03:34,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (1/1) ... [2021-11-05 21:03:34,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (1/1) ... [2021-11-05 21:03:35,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 21:03:35,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 21:03:35,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 21:03:35,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 21:03:35,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (1/1) ... [2021-11-05 21:03:35,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 21:03:35,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 21:03:35,204 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) [2021-11-05 21:03:35,211 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 [2021-11-05 21:03:35,233 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tx_timeout [2021-11-05 21:03:35,234 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tx_timeout [2021-11-05 21:03:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 21:03:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 21:03:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 21:03:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 21:03:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 21:03:35,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 21:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 21:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 21:03:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-05 21:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 21:03:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 21:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 21:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 21:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-05 21:03:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 21:03:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 21:03:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 21:03:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_dev_init [2021-11-05 21:03:35,236 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_dev_init [2021-11-05 21:03:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 21:03:35,236 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_adjust_link [2021-11-05 21:03:35,237 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_adjust_link [2021-11-05 21:03:35,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 21:05:23,705 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 21:05:23,705 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 21:05:23,705 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 21:05:23,705 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-05 21:05:23,706 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 21:05:23,706 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-05 21:05:23,706 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,707 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,707 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,707 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,707 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,707 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,707 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,707 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,711 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 21:05:23,715 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 21:05:23,716 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,717 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,717 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,717 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2021-11-05 21:05:23,719 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-05 21:05:23,719 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-05 21:05:23,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 21:05:23,910 INFO L299 CfgBuilder]: Removed 34786 assume(true) statements. [2021-11-05 21:05:23,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:05:23 BoogieIcfgContainer [2021-11-05 21:05:23,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 21:05:23,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 21:05:23,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 21:05:23,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 21:05:23,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 09:03:21" (1/3) ... [2021-11-05 21:05:23,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2bac3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:05:23, skipping insertion in model container [2021-11-05 21:05:23,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:03:26" (2/3) ... [2021-11-05 21:05:23,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2bac3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:05:23, skipping insertion in model container [2021-11-05 21:05:23,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:05:23" (3/3) ... [2021-11-05 21:05:23,950 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-renesas-sh_eth.cil.i [2021-11-05 21:05:23,954 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 21:05:23,955 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-05 21:05:24,086 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 21:05:24,091 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 [2021-11-05 21:05:24,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-05 21:05:24,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 30370 states, 30236 states have (on average 1.293325836750893) internal successors, (39105), 30241 states have internal predecessors, (39105), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2021-11-05 21:05:24,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-05 21:05:24,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:05:24,600 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:05:24,601 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 21:05:24,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:05:24,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1144841294, now seen corresponding path program 1 times [2021-11-05 21:05:24,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:05:24,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316045934] [2021-11-05 21:05:24,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:05:24,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:05:25,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:05:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:05:25,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:05:25,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316045934] [2021-11-05 21:05:25,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316045934] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:05:25,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:05:25,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:05:25,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538302455] [2021-11-05 21:05:25,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:05:25,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 21:05:25,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:05:25,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 21:05:25,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:05:25,697 INFO L87 Difference]: Start difference. First operand has 30370 states, 30236 states have (on average 1.293325836750893) internal successors, (39105), 30241 states have internal predecessors, (39105), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2021-11-05 21:05:27,825 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 [] [2021-11-05 21:05:29,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:05:29,846 INFO L93 Difference]: Finished difference Result 89624 states and 116306 transitions. [2021-11-05 21:05:29,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 21:05:29,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 174 [2021-11-05 21:05:29,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:05:30,187 INFO L225 Difference]: With dead ends: 89624 [2021-11-05 21:05:30,187 INFO L226 Difference]: Without dead ends: 56990 [2021-11-05 21:05:30,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.10ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:05:30,603 INFO L933 BasicCegarLoop]: 38900 mSDtfsCounter, 38031 mSDsluCounter, 38727 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2161.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38031 SdHoareTripleChecker+Valid, 77627 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 190.69ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2294.96ms IncrementalHoareTripleChecker+Time [2021-11-05 21:05:30,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38031 Valid, 77627 Invalid, 34 Unknown, 0 Unchecked, 190.69ms Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 2294.96ms Time] [2021-11-05 21:05:30,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56990 states. [2021-11-05 21:05:32,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56990 to 56988. [2021-11-05 21:05:32,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56988 states, 56724 states have (on average 1.2464388971158593) internal successors, (70703), 56731 states have internal predecessors, (70703), 252 states have call successors, (252), 8 states have call predecessors, (252), 8 states have return successors, (252), 250 states have call predecessors, (252), 252 states have call successors, (252) [2021-11-05 21:05:32,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56988 states to 56988 states and 71207 transitions. [2021-11-05 21:05:32,485 INFO L78 Accepts]: Start accepts. Automaton has 56988 states and 71207 transitions. Word has length 174 [2021-11-05 21:05:32,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:05:32,489 INFO L470 AbstractCegarLoop]: Abstraction has 56988 states and 71207 transitions. [2021-11-05 21:05:32,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2021-11-05 21:05:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 56988 states and 71207 transitions. [2021-11-05 21:05:32,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-05 21:05:32,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:05:32,515 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:05:32,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 21:05:32,516 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 21:05:32,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:05:32,519 INFO L85 PathProgramCache]: Analyzing trace with hash 101662044, now seen corresponding path program 1 times [2021-11-05 21:05:32,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:05:32,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475308527] [2021-11-05 21:05:32,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:05:32,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:05:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:05:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:05:33,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:05:33,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475308527] [2021-11-05 21:05:33,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475308527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:05:33,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:05:33,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:05:33,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944161846] [2021-11-05 21:05:33,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:05:33,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 21:05:33,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:05:33,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 21:05:33,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:05:33,039 INFO L87 Difference]: Start difference. First operand 56988 states and 71207 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-11-05 21:05:35,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 21:05:37,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 21:05:37,548 INFO L93 Difference]: Finished difference Result 140245 states and 175358 transitions. [2021-11-05 21:05:37,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 21:05:37,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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 198 [2021-11-05 21:05:37,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 21:05:37,927 INFO L225 Difference]: With dead ends: 140245 [2021-11-05 21:05:37,928 INFO L226 Difference]: Without dead ends: 83677 [2021-11-05 21:05:38,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:05:38,114 INFO L933 BasicCegarLoop]: 35980 mSDtfsCounter, 34375 mSDsluCounter, 35818 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2201.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34375 SdHoareTripleChecker+Valid, 71798 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 82.23ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2377.65ms IncrementalHoareTripleChecker+Time [2021-11-05 21:05:38,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34375 Valid, 71798 Invalid, 80 Unknown, 0 Unchecked, 82.23ms Time], IncrementalHoareTripleChecker [17 Valid, 62 Invalid, 1 Unknown, 0 Unchecked, 2377.65ms Time] [2021-11-05 21:05:38,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83677 states. [2021-11-05 21:05:39,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83677 to 83655. [2021-11-05 21:05:40,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83655 states, 83265 states have (on average 1.2469825256710503) internal successors, (103830), 83274 states have internal predecessors, (103830), 374 states have call successors, (374), 12 states have call predecessors, (374), 12 states have return successors, (374), 371 states have call predecessors, (374), 374 states have call successors, (374) [2021-11-05 21:05:40,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83655 states to 83655 states and 104578 transitions. [2021-11-05 21:05:40,753 INFO L78 Accepts]: Start accepts. Automaton has 83655 states and 104578 transitions. Word has length 198 [2021-11-05 21:05:40,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 21:05:40,755 INFO L470 AbstractCegarLoop]: Abstraction has 83655 states and 104578 transitions. [2021-11-05 21:05:40,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-11-05 21:05:40,755 INFO L276 IsEmpty]: Start isEmpty. Operand 83655 states and 104578 transitions. [2021-11-05 21:05:40,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-05 21:05:40,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 21:05:40,784 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 21:05:40,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 21:05:40,785 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-05 21:05:40,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 21:05:40,785 INFO L85 PathProgramCache]: Analyzing trace with hash -128621930, now seen corresponding path program 1 times [2021-11-05 21:05:40,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 21:05:40,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077500577] [2021-11-05 21:05:40,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 21:05:40,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 21:05:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 21:05:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 21:05:41,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 21:05:41,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077500577] [2021-11-05 21:05:41,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077500577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 21:05:41,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 21:05:41,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 21:05:41,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220620419] [2021-11-05 21:05:41,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 21:05:41,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 21:05:41,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 21:05:41,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 21:05:41,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 21:05:41,163 INFO L87 Difference]: Start difference. First operand 83655 states and 104578 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2021-11-05 21:05:43,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []