./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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-kernel-locking-mutex_fs-autofs4-autofs4.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 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:46:57,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:46:57,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:46:57,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:46:57,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:46:57,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:46:57,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:46:57,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:46:57,136 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:46:57,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:46:57,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:46:57,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:46:57,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:46:57,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:46:57,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:46:57,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:46:57,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:46:57,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:46:57,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:46:57,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:46:57,163 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:46:57,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:46:57,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:46:57,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:46:57,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:46:57,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:46:57,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:46:57,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:46:57,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:46:57,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:46:57,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:46:57,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:46:57,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:46:57,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:46:57,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:46:57,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:46:57,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:46:57,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:46:57,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:46:57,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:46:57,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:46:57,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:46:57,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:46:57,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:46:57,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:46:57,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:46:57,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:46:57,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:46:57,228 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:46:57,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:46:57,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:46:57,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:46:57,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:46:57,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:46:57,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:46:57,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:46:57,230 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:46:57,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:46:57,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:46:57,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:46:57,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:46:57,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:46:57,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:46:57,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:46:57,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:46:57,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:46:57,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:46:57,232 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:46:57,233 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:46:57,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:46:57,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:46:57,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4035b79a2162ba317b65ff4b4b50beff318d26f8217214f4a55e9e0e820898d1 [2021-11-06 18:46:57,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:46:57,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:46:57,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:46:57,490 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:46:57,491 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:46:57,492 INFO L432 ainManager$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-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-06 18:46:57,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95ed3a9c0/6cdc79f9cf38425f96bfcb07522f3f19/FLAGe0bb73705 [2021-11-06 18:46:58,293 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:46:58,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-06 18:46:58,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95ed3a9c0/6cdc79f9cf38425f96bfcb07522f3f19/FLAGe0bb73705 [2021-11-06 18:46:58,573 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95ed3a9c0/6cdc79f9cf38425f96bfcb07522f3f19 [2021-11-06 18:46:58,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:46:58,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:46:58,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:46:58,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:46:58,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:46:58,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:46:58" (1/1) ... [2021-11-06 18:46:58,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@715f819a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:46:58, skipping insertion in model container [2021-11-06 18:46:58,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:46:58" (1/1) ... [2021-11-06 18:46:58,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:46:58,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:47:01,727 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-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2021-11-06 18:47:01,730 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-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2021-11-06 18:47:01,731 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-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2021-11-06 18:47:01,734 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-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2021-11-06 18:47:01,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:47:01,814 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:47:02,183 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-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387172,387185] [2021-11-06 18:47:02,184 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-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387338,387351] [2021-11-06 18:47:02,184 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-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387502,387515] [2021-11-06 18:47:02,188 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-kernel-locking-mutex_fs-autofs4-autofs4.cil.i[387667,387680] [2021-11-06 18:47:02,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:47:02,329 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:47:02,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02 WrapperNode [2021-11-06 18:47:02,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:47:02,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:47:02,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:47:02,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:47:02,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (1/1) ... [2021-11-06 18:47:02,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (1/1) ... [2021-11-06 18:47:06,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:47:06,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:47:06,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:47:06,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:47:06,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (1/1) ... [2021-11-06 18:47:06,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (1/1) ... [2021-11-06 18:47:07,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (1/1) ... [2021-11-06 18:47:07,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (1/1) ... [2021-11-06 18:47:08,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (1/1) ... [2021-11-06 18:47:09,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (1/1) ... [2021-11-06 18:47:09,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (1/1) ... [2021-11-06 18:47:10,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:47:10,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:47:10,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:47:10,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:47:10,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (1/1) ... [2021-11-06 18:47:10,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:47:10,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:47:10,560 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) [2021-11-06 18:47:10,585 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 [2021-11-06 18:47:10,606 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 18:47:10,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:47:10,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:47:10,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:47:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:47:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:47:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2021-11-06 18:47:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:47:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 18:47:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:47:10,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:47:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:47:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:47:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:47:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:47:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:47:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:47:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:47:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-06 18:50:52,387 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:50:52,387 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 18:50:52,388 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 18:50:52,388 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:50:52,388 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-06 18:50:52,388 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 18:50:52,388 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 18:50:52,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-06 18:50:52,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-06 18:50:52,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:50:52,389 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-06 18:50:52,390 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 18:50:52,392 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:50:52,395 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:50:52,400 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-06 18:50:52,401 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-06 18:50:52,493 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:50:52,493 INFO L299 CfgBuilder]: Removed 27571 assume(true) statements. [2021-11-06 18:50:52,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:50:52 BoogieIcfgContainer [2021-11-06 18:50:52,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:50:52,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:50:52,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:50:52,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:50:52,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:46:58" (1/3) ... [2021-11-06 18:50:52,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40cd690c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:50:52, skipping insertion in model container [2021-11-06 18:50:52,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:02" (2/3) ... [2021-11-06 18:50:52,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40cd690c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:50:52, skipping insertion in model container [2021-11-06 18:50:52,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:50:52" (3/3) ... [2021-11-06 18:50:52,526 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-autofs4-autofs4.cil.i [2021-11-06 18:50:52,529 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:50:52,530 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 429 error locations. [2021-11-06 18:50:52,640 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:50:52,645 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 18:50:52,645 INFO L340 AbstractCegarLoop]: Starting to check reachability of 429 error locations. [2021-11-06 18:50:53,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 28332 states, 27903 states have (on average 1.4298820915313766) internal successors, (39898), 28331 states have internal predecessors, (39898), 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) [2021-11-06 18:50:53,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-06 18:50:53,045 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:50:53,046 INFO L513 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] [2021-11-06 18:50:53,047 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 426 more)] === [2021-11-06 18:50:53,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:50:53,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1395084419, now seen corresponding path program 1 times [2021-11-06 18:50:53,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:50:53,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539892208] [2021-11-06 18:50:53,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:50:53,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:50:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:50:53,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:50:53,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:50:53,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539892208] [2021-11-06 18:50:53,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539892208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:50:53,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:50:53,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:50:53,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407380322] [2021-11-06 18:50:53,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:50:53,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:50:53,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:50:53,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:50:54,020 INFO L87 Difference]: Start difference. First operand has 28332 states, 27903 states have (on average 1.4298820915313766) internal successors, (39898), 28331 states have internal predecessors, (39898), 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 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2021-11-06 18:50:58,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:50:58,475 INFO L93 Difference]: Finished difference Result 80903 states and 114331 transitions. [2021-11-06 18:50:58,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:50:58,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 155 [2021-11-06 18:50:58,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:50:58,727 INFO L225 Difference]: With dead ends: 80903 [2021-11-06 18:50:58,728 INFO L226 Difference]: Without dead ends: 52242 [2021-11-06 18:50:58,804 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:50:58,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52242 states. [2021-11-06 18:51:00,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52242 to 51414. [2021-11-06 18:51:00,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51414 states, 50985 states have (on average 1.256389134059037) internal successors, (64057), 51413 states have internal predecessors, (64057), 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) [2021-11-06 18:51:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51414 states to 51414 states and 64057 transitions. [2021-11-06 18:51:00,466 INFO L78 Accepts]: Start accepts. Automaton has 51414 states and 64057 transitions. Word has length 155 [2021-11-06 18:51:00,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:51:00,471 INFO L470 AbstractCegarLoop]: Abstraction has 51414 states and 64057 transitions. [2021-11-06 18:51:00,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2021-11-06 18:51:00,472 INFO L276 IsEmpty]: Start isEmpty. Operand 51414 states and 64057 transitions. [2021-11-06 18:51:00,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-06 18:51:00,482 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:51:00,482 INFO L513 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] [2021-11-06 18:51:00,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:51:00,483 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr150ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 426 more)] === [2021-11-06 18:51:00,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:51:00,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1058903576, now seen corresponding path program 1 times [2021-11-06 18:51:00,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:51:00,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177642014] [2021-11-06 18:51:00,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:51:00,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:51:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:51:01,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:51:01,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:51:01,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177642014] [2021-11-06 18:51:01,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177642014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:51:01,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:51:01,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:51:01,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854215423] [2021-11-06 18:51:01,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:51:01,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:51:01,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:51:01,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:51:01,213 INFO L87 Difference]: Start difference. First operand 51414 states and 64057 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-11-06 18:51:06,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:51:06,190 INFO L93 Difference]: Finished difference Result 109290 states and 135828 transitions. [2021-11-06 18:51:06,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:51:06,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 161 [2021-11-06 18:51:06,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:51:06,378 INFO L225 Difference]: With dead ends: 109290 [2021-11-06 18:51:06,379 INFO L226 Difference]: Without dead ends: 58232 [2021-11-06 18:51:06,475 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:51:06,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58232 states. [2021-11-06 18:51:07,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58232 to 57600. [2021-11-06 18:51:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57600 states, 57171 states have (on average 1.2556191075895122) internal successors, (71785), 57599 states have internal predecessors, (71785), 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) [2021-11-06 18:51:08,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57600 states to 57600 states and 71785 transitions. [2021-11-06 18:51:08,089 INFO L78 Accepts]: Start accepts. Automaton has 57600 states and 71785 transitions. Word has length 161 [2021-11-06 18:51:08,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:51:08,091 INFO L470 AbstractCegarLoop]: Abstraction has 57600 states and 71785 transitions. [2021-11-06 18:51:08,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2021-11-06 18:51:08,091 INFO L276 IsEmpty]: Start isEmpty. Operand 57600 states and 71785 transitions. [2021-11-06 18:51:08,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-06 18:51:08,095 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:51:08,096 INFO L513 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] [2021-11-06 18:51:08,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:51:08,096 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr249ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 426 more)] === [2021-11-06 18:51:08,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:51:08,124 INFO L85 PathProgramCache]: Analyzing trace with hash 837432188, now seen corresponding path program 1 times [2021-11-06 18:51:08,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:51:08,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336250227] [2021-11-06 18:51:08,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:51:08,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:51:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:51:08,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:51:08,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:51:08,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336250227] [2021-11-06 18:51:08,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336250227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:51:08,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:51:08,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:51:08,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929667216] [2021-11-06 18:51:08,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:51:08,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:51:08,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:51:08,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:51:08,678 INFO L87 Difference]: Start difference. First operand 57600 states and 71785 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2021-11-06 18:51:12,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:51:12,581 INFO L93 Difference]: Finished difference Result 141924 states and 176707 transitions. [2021-11-06 18:51:12,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:51:12,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 162 [2021-11-06 18:51:12,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:51:12,841 INFO L225 Difference]: With dead ends: 141924 [2021-11-06 18:51:12,842 INFO L226 Difference]: Without dead ends: 84680 [2021-11-06 18:51:12,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:51:13,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84680 states. [2021-11-06 18:51:15,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84680 to 83898. [2021-11-06 18:51:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83898 states, 83469 states have (on average 1.256131018701554) internal successors, (104848), 83897 states have internal predecessors, (104848), 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) [2021-11-06 18:51:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83898 states to 83898 states and 104848 transitions. [2021-11-06 18:51:15,579 INFO L78 Accepts]: Start accepts. Automaton has 83898 states and 104848 transitions. Word has length 162 [2021-11-06 18:51:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:51:15,579 INFO L470 AbstractCegarLoop]: Abstraction has 83898 states and 104848 transitions. [2021-11-06 18:51:15,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2021-11-06 18:51:15,580 INFO L276 IsEmpty]: Start isEmpty. Operand 83898 states and 104848 transitions. [2021-11-06 18:51:15,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-06 18:51:15,584 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:51:15,584 INFO L513 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] [2021-11-06 18:51:15,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:51:15,585 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 426 more)] === [2021-11-06 18:51:15,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:51:15,585 INFO L85 PathProgramCache]: Analyzing trace with hash 2135826751, now seen corresponding path program 1 times [2021-11-06 18:51:15,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:51:15,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381467284] [2021-11-06 18:51:15,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:51:15,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:51:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:51:15,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:51:15,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:51:15,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381467284] [2021-11-06 18:51:15,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381467284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:51:15,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:51:15,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:51:15,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149265964] [2021-11-06 18:51:15,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:51:15,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:51:15,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:51:15,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:51:15,960 INFO L87 Difference]: Start difference. First operand 83898 states and 104848 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-11-06 18:51:20,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:51:20,808 INFO L93 Difference]: Finished difference Result 209270 states and 261280 transitions. [2021-11-06 18:51:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:51:20,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 166 [2021-11-06 18:51:20,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:51:21,117 INFO L225 Difference]: With dead ends: 209270 [2021-11-06 18:51:21,117 INFO L226 Difference]: Without dead ends: 125728 [2021-11-06 18:51:21,225 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:51:21,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125728 states. [2021-11-06 18:51:23,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125728 to 124970. [2021-11-06 18:51:23,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124970 states, 124541 states have (on average 1.2554098650243695) internal successors, (156350), 124969 states have internal predecessors, (156350), 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) [2021-11-06 18:51:24,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124970 states to 124970 states and 156350 transitions. [2021-11-06 18:51:24,080 INFO L78 Accepts]: Start accepts. Automaton has 124970 states and 156350 transitions. Word has length 166 [2021-11-06 18:51:24,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:51:24,081 INFO L470 AbstractCegarLoop]: Abstraction has 124970 states and 156350 transitions. [2021-11-06 18:51:24,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-11-06 18:51:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand 124970 states and 156350 transitions. [2021-11-06 18:51:24,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-06 18:51:24,089 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:51:24,089 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:51:24,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:51:24,090 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 426 more)] === [2021-11-06 18:51:24,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:51:24,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1830401988, now seen corresponding path program 1 times [2021-11-06 18:51:24,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:51:24,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876714899] [2021-11-06 18:51:24,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:51:24,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:51:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:51:24,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:51:24,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:51:24,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876714899] [2021-11-06 18:51:24,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876714899] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:51:24,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:51:24,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:51:24,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838923730] [2021-11-06 18:51:24,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:51:24,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:51:24,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:51:24,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:51:24,761 INFO L87 Difference]: Start difference. First operand 124970 states and 156350 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2021-11-06 18:51:30,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:51:30,675 INFO L93 Difference]: Finished difference Result 364279 states and 456000 transitions. [2021-11-06 18:51:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:51:30,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 193 [2021-11-06 18:51:30,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:51:31,331 INFO L225 Difference]: With dead ends: 364279 [2021-11-06 18:51:31,331 INFO L226 Difference]: Without dead ends: 244258 [2021-11-06 18:51:31,527 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:51:31,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244258 states.