./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.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-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.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 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 20:35:31,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 20:35:31,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 20:35:31,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 20:35:31,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 20:35:31,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 20:35:31,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 20:35:31,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 20:35:31,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 20:35:31,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 20:35:31,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 20:35:31,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 20:35:31,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 20:35:31,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 20:35:31,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 20:35:31,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 20:35:31,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 20:35:31,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 20:35:31,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 20:35:31,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 20:35:31,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 20:35:31,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 20:35:31,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 20:35:31,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 20:35:31,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 20:35:31,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 20:35:31,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 20:35:31,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 20:35:31,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 20:35:31,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 20:35:31,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 20:35:31,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 20:35:31,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 20:35:31,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 20:35:31,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 20:35:31,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 20:35:31,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 20:35:31,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 20:35:31,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 20:35:31,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 20:35:31,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 20:35:31,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 20:35:31,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 20:35:31,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 20:35:31,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 20:35:31,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 20:35:31,211 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 20:35:31,211 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 20:35:31,211 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 20:35:31,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 20:35:31,212 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 20:35:31,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 20:35:31,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 20:35:31,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 20:35:31,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 20:35:31,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 20:35:31,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 20:35:31,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 20:35:31,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 20:35:31,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 20:35:31,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 20:35:31,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:35:31,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 20:35:31,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 20:35:31,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 20:35:31,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 20:35:31,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 20:35:31,215 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 20:35:31,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 20:35:31,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 20:35:31,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 20:35:31,216 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 [2021-11-06 20:35:31,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 20:35:31,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 20:35:31,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 20:35:31,413 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 20:35:31,416 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 20:35:31,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2021-11-06 20:35:31,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce73c52dc/36d9958b76b94864abd3912b3154196a/FLAG32423a937 [2021-11-06 20:35:32,207 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 20:35:32,208 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2021-11-06 20:35:32,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce73c52dc/36d9958b76b94864abd3912b3154196a/FLAG32423a937 [2021-11-06 20:35:32,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce73c52dc/36d9958b76b94864abd3912b3154196a [2021-11-06 20:35:32,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 20:35:32,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 20:35:32,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 20:35:32,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 20:35:32,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 20:35:32,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:35:32" (1/1) ... [2021-11-06 20:35:32,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61cd6071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:32, skipping insertion in model container [2021-11-06 20:35:32,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:35:32" (1/1) ... [2021-11-06 20:35:32,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 20:35:32,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 20:35:34,791 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2021-11-06 20:35:34,793 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2021-11-06 20:35:34,794 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2021-11-06 20:35:34,794 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2021-11-06 20:35:34,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:35:34,865 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 20:35:35,285 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2021-11-06 20:35:35,286 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2021-11-06 20:35:35,286 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2021-11-06 20:35:35,287 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2021-11-06 20:35:35,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:35:35,468 INFO L208 MainTranslator]: Completed translation [2021-11-06 20:35:35,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35 WrapperNode [2021-11-06 20:35:35,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 20:35:35,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 20:35:35,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 20:35:35,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 20:35:35,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (1/1) ... [2021-11-06 20:35:35,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (1/1) ... [2021-11-06 20:35:38,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 20:35:38,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 20:35:38,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 20:35:38,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 20:35:38,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (1/1) ... [2021-11-06 20:35:38,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (1/1) ... [2021-11-06 20:35:39,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (1/1) ... [2021-11-06 20:35:39,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (1/1) ... [2021-11-06 20:35:41,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (1/1) ... [2021-11-06 20:35:42,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (1/1) ... [2021-11-06 20:35:42,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (1/1) ... [2021-11-06 20:35:42,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 20:35:42,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 20:35:42,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 20:35:42,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 20:35:42,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (1/1) ... [2021-11-06 20:35:42,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:35:42,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 20:35:42,860 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 20:35:42,862 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 20:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 20:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 20:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 20:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 20:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 20:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 20:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 20:35:42,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 20:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 20:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 20:35:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 20:35:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 20:35:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 20:35:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 20:35:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-06 20:35:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 20:43:49,509 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 20:43:49,509 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 20:43:49,509 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-06 20:43:49,509 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-06 20:43:49,509 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-06 20:43:49,510 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 20:43:49,511 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 20:43:49,511 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 20:43:49,512 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 20:43:49,512 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 20:43:49,518 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-06 20:43:49,583 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 20:43:49,584 INFO L299 CfgBuilder]: Removed 19314 assume(true) statements. [2021-11-06 20:43:49,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:43:49 BoogieIcfgContainer [2021-11-06 20:43:49,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 20:43:49,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 20:43:49,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 20:43:49,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 20:43:49,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:35:32" (1/3) ... [2021-11-06 20:43:49,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f71c3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:43:49, skipping insertion in model container [2021-11-06 20:43:49,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:35" (2/3) ... [2021-11-06 20:43:49,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f71c3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:43:49, skipping insertion in model container [2021-11-06 20:43:49,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:43:49" (3/3) ... [2021-11-06 20:43:49,608 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2021-11-06 20:43:49,611 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 20:43:49,612 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 596 error locations. [2021-11-06 20:43:49,697 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 20:43:49,701 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 20:43:49,701 INFO L340 AbstractCegarLoop]: Starting to check reachability of 596 error locations. [2021-11-06 20:43:49,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 24077 states, 23481 states have (on average 1.43860993995145) internal successors, (33780), 24076 states have internal predecessors, (33780), 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 20:43:49,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-06 20:43:49,956 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:43:49,956 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] [2021-11-06 20:43:49,957 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 593 more)] === [2021-11-06 20:43:49,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:43:49,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1894068687, now seen corresponding path program 1 times [2021-11-06 20:43:49,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:43:49,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361770889] [2021-11-06 20:43:49,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:43:49,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:43:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:43:51,079 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 20:43:51,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:43:51,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361770889] [2021-11-06 20:43:51,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361770889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:43:51,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:43:51,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:43:51,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555899033] [2021-11-06 20:43:51,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:43:51,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:43:51,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:43:51,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:43:51,132 INFO L87 Difference]: Start difference. First operand has 24077 states, 23481 states have (on average 1.43860993995145) internal successors, (33780), 24076 states have internal predecessors, (33780), 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 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 20:43:54,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:43:54,525 INFO L93 Difference]: Finished difference Result 71354 states and 100213 transitions. [2021-11-06 20:43:54,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:43:54,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 126 [2021-11-06 20:43:54,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:43:54,687 INFO L225 Difference]: With dead ends: 71354 [2021-11-06 20:43:54,687 INFO L226 Difference]: Without dead ends: 46059 [2021-11-06 20:43:54,745 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 20:43:54,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46059 states. [2021-11-06 20:43:55,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46059 to 44891. [2021-11-06 20:43:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44891 states, 44295 states have (on average 1.3974037701772208) internal successors, (61898), 44890 states have internal predecessors, (61898), 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 20:43:55,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44891 states to 44891 states and 61898 transitions. [2021-11-06 20:43:55,803 INFO L78 Accepts]: Start accepts. Automaton has 44891 states and 61898 transitions. Word has length 126 [2021-11-06 20:43:55,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:43:55,805 INFO L470 AbstractCegarLoop]: Abstraction has 44891 states and 61898 transitions. [2021-11-06 20:43:55,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 20:43:55,806 INFO L276 IsEmpty]: Start isEmpty. Operand 44891 states and 61898 transitions. [2021-11-06 20:43:55,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-06 20:43:55,809 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:43:55,809 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] [2021-11-06 20:43:55,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 20:43:55,810 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr222ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 593 more)] === [2021-11-06 20:43:55,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:43:55,812 INFO L85 PathProgramCache]: Analyzing trace with hash -714978594, now seen corresponding path program 1 times [2021-11-06 20:43:55,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:43:55,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626020685] [2021-11-06 20:43:55,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:43:55,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:43:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:43:56,551 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 20:43:56,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:43:56,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626020685] [2021-11-06 20:43:56,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626020685] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:43:56,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:43:56,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:43:56,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022527550] [2021-11-06 20:43:56,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:43:56,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:43:56,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:43:56,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:43:56,553 INFO L87 Difference]: Start difference. First operand 44891 states and 61898 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 20:44:00,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:44:00,143 INFO L93 Difference]: Finished difference Result 106229 states and 146047 transitions. [2021-11-06 20:44:00,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:44:00,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 134 [2021-11-06 20:44:00,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:44:00,334 INFO L225 Difference]: With dead ends: 106229 [2021-11-06 20:44:00,336 INFO L226 Difference]: Without dead ends: 61630 [2021-11-06 20:44:00,431 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 20:44:00,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61630 states. [2021-11-06 20:44:01,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61630 to 60562. [2021-11-06 20:44:01,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60562 states, 59966 states have (on average 1.3989927625654537) internal successors, (83892), 60561 states have internal predecessors, (83892), 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 20:44:01,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60562 states to 60562 states and 83892 transitions. [2021-11-06 20:44:01,988 INFO L78 Accepts]: Start accepts. Automaton has 60562 states and 83892 transitions. Word has length 134 [2021-11-06 20:44:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:44:01,989 INFO L470 AbstractCegarLoop]: Abstraction has 60562 states and 83892 transitions. [2021-11-06 20:44:01,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 20:44:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 60562 states and 83892 transitions. [2021-11-06 20:44:01,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-06 20:44:01,992 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:44:01,992 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] [2021-11-06 20:44:01,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 20:44:01,992 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr306ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 593 more)] === [2021-11-06 20:44:01,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:44:01,993 INFO L85 PathProgramCache]: Analyzing trace with hash -654466596, now seen corresponding path program 1 times [2021-11-06 20:44:01,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:44:01,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885721591] [2021-11-06 20:44:01,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:44:01,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:44:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:44:02,667 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 20:44:02,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:44:02,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885721591] [2021-11-06 20:44:02,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885721591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:44:02,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:44:02,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:44:02,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793966881] [2021-11-06 20:44:02,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:44:02,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:44:02,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:44:02,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:44:02,669 INFO L87 Difference]: Start difference. First operand 60562 states and 83892 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 20:44:06,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:44:06,833 INFO L93 Difference]: Finished difference Result 151395 states and 209507 transitions. [2021-11-06 20:44:06,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:44:06,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 135 [2021-11-06 20:44:06,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:44:07,057 INFO L225 Difference]: With dead ends: 151395 [2021-11-06 20:44:07,057 INFO L226 Difference]: Without dead ends: 91125 [2021-11-06 20:44:07,154 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 20:44:07,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91125 states. [2021-11-06 20:44:08,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91125 to 90083. [2021-11-06 20:44:08,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90083 states, 89487 states have (on average 1.4008738699475902) internal successors, (125360), 90082 states have internal predecessors, (125360), 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 20:44:09,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90083 states to 90083 states and 125360 transitions. [2021-11-06 20:44:09,327 INFO L78 Accepts]: Start accepts. Automaton has 90083 states and 125360 transitions. Word has length 135 [2021-11-06 20:44:09,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:44:09,328 INFO L470 AbstractCegarLoop]: Abstraction has 90083 states and 125360 transitions. [2021-11-06 20:44:09,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 20:44:09,328 INFO L276 IsEmpty]: Start isEmpty. Operand 90083 states and 125360 transitions. [2021-11-06 20:44:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-06 20:44:09,330 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:44:09,330 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] [2021-11-06 20:44:09,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 20:44:09,331 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr404ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 593 more)] === [2021-11-06 20:44:09,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:44:09,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1922585059, now seen corresponding path program 1 times [2021-11-06 20:44:09,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:44:09,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587256989] [2021-11-06 20:44:09,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:44:09,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:44:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:44:09,792 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 20:44:09,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:44:09,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587256989] [2021-11-06 20:44:09,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587256989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:44:09,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:44:09,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:44:09,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445304862] [2021-11-06 20:44:09,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:44:09,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:44:09,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:44:09,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:44:09,794 INFO L87 Difference]: Start difference. First operand 90083 states and 125360 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 20:44:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:44:14,722 INFO L93 Difference]: Finished difference Result 239399 states and 333058 transitions. [2021-11-06 20:44:14,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:44:14,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 136 [2021-11-06 20:44:14,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:44:15,132 INFO L225 Difference]: With dead ends: 239399 [2021-11-06 20:44:15,132 INFO L226 Difference]: Without dead ends: 149608 [2021-11-06 20:44:15,296 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 20:44:15,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149608 states.