./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-spinlock_drivers-net-ethernet-amd-pcnet32.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 bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 02:42:51,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 02:42:51,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 02:42:51,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 02:42:51,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 02:42:51,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 02:42:51,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 02:42:51,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 02:42:51,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 02:42:51,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 02:42:51,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 02:42:51,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 02:42:51,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 02:42:51,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 02:42:51,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 02:42:51,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 02:42:51,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 02:42:51,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 02:42:51,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 02:42:51,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 02:42:51,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 02:42:51,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 02:42:51,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 02:42:51,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 02:42:51,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 02:42:51,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 02:42:51,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 02:42:51,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 02:42:51,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 02:42:51,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 02:42:51,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 02:42:51,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 02:42:51,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 02:42:51,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 02:42:51,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 02:42:51,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 02:42:51,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 02:42:51,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 02:42:51,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 02:42:51,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 02:42:51,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 02:42:51,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 02:42:51,209 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 02:42:51,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 02:42:51,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 02:42:51,214 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 02:42:51,215 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 02:42:51,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 02:42:51,215 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 02:42:51,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 02:42:51,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 02:42:51,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 02:42:51,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 02:42:51,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 02:42:51,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 02:42:51,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 02:42:51,217 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 02:42:51,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 02:42:51,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 02:42:51,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 02:42:51,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 02:42:51,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 02:42:51,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 02:42:51,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 02:42:51,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 02:42:51,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 02:42:51,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 02:42:51,219 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 02:42:51,219 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 02:42:51,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 02:42:51,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 02:42:51,220 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf04605b927a140287b1c754ad26365df4778b673325ded7dfdba05deed83fbc [2021-11-03 02:42:51,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 02:42:51,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 02:42:51,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 02:42:51,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 02:42:51,467 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 02:42:51,468 INFO L432 ainManager$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-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-03 02:42:51,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb8362981/2118afa06da542c2ac6f896e5489d08a/FLAG33d28785b [2021-11-03 02:42:52,401 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 02:42:52,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-03 02:42:52,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb8362981/2118afa06da542c2ac6f896e5489d08a/FLAG33d28785b [2021-11-03 02:42:52,873 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb8362981/2118afa06da542c2ac6f896e5489d08a [2021-11-03 02:42:52,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 02:42:52,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 02:42:52,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 02:42:52,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 02:42:52,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 02:42:52,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:42:52" (1/1) ... [2021-11-03 02:42:52,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ed4e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:52, skipping insertion in model container [2021-11-03 02:42:52,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:42:52" (1/1) ... [2021-11-03 02:42:52,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 02:42:53,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 02:42:55,711 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-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2021-11-03 02:42:55,713 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-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2021-11-03 02:42:55,714 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-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2021-11-03 02:42:55,714 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-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2021-11-03 02:42:55,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 02:42:55,782 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 02:42:56,138 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-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422318,422331] [2021-11-03 02:42:56,139 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-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422487,422500] [2021-11-03 02:42:56,140 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-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422654,422667] [2021-11-03 02:42:56,140 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-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422822,422835] [2021-11-03 02:42:56,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 02:42:56,360 INFO L208 MainTranslator]: Completed translation [2021-11-03 02:42:56,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56 WrapperNode [2021-11-03 02:42:56,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 02:42:56,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 02:42:56,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 02:42:56,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 02:42:56,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (1/1) ... [2021-11-03 02:42:56,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (1/1) ... [2021-11-03 02:42:58,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 02:42:58,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 02:42:58,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 02:42:58,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 02:42:58,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (1/1) ... [2021-11-03 02:42:58,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (1/1) ... [2021-11-03 02:42:58,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (1/1) ... [2021-11-03 02:42:58,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (1/1) ... [2021-11-03 02:42:59,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (1/1) ... [2021-11-03 02:43:00,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (1/1) ... [2021-11-03 02:43:00,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (1/1) ... [2021-11-03 02:43:00,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 02:43:00,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 02:43:00,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 02:43:00,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 02:43:00,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (1/1) ... [2021-11-03 02:43:00,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 02:43:00,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 02:43:00,736 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) [2021-11-03 02:43:00,756 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 [2021-11-03 02:43:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 02:43:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-03 02:43:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-03 02:43:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 02:43:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 02:43:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 02:43:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-03 02:43:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 02:43:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 02:43:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 02:43:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 02:43:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-03 02:43:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 02:43:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 02:43:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 02:43:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 02:43:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 02:43:10,009 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-03 02:43:10,009 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-03 02:43:10,009 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-03 02:43:10,009 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-03 02:43:10,010 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-03 02:43:10,010 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-03 02:43:10,010 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-03 02:43:10,010 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-03 02:43:10,010 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-03 02:43:10,011 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-03 02:43:10,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-03 02:43:10,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0; [2021-11-03 02:43:10,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-03 02:43:10,016 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 02:43:10,016 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-03 02:43:10,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-03 02:43:10,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 02:43:10,288 INFO L299 CfgBuilder]: Removed 18498 assume(true) statements. [2021-11-03 02:43:10,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:10 BoogieIcfgContainer [2021-11-03 02:43:10,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 02:43:10,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 02:43:10,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 02:43:10,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 02:43:10,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:42:52" (1/3) ... [2021-11-03 02:43:10,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5091d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:43:10, skipping insertion in model container [2021-11-03 02:43:10,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:42:56" (2/3) ... [2021-11-03 02:43:10,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5091d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:43:10, skipping insertion in model container [2021-11-03 02:43:10,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:43:10" (3/3) ... [2021-11-03 02:43:10,310 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-11-03 02:43:10,314 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 02:43:10,314 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 134 error locations. [2021-11-03 02:43:10,391 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 02:43:10,396 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 [2021-11-03 02:43:10,397 INFO L340 AbstractCegarLoop]: Starting to check reachability of 134 error locations. [2021-11-03 02:43:10,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 12148 states, 12014 states have (on average 1.3187947394706176) internal successors, (15844), 12147 states have internal predecessors, (15844), 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) [2021-11-03 02:43:10,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-03 02:43:10,567 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:43:10,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 02:43:10,569 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 131 more)] === [2021-11-03 02:43:10,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:43:10,573 INFO L85 PathProgramCache]: Analyzing trace with hash 978392589, now seen corresponding path program 1 times [2021-11-03 02:43:10,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:43:10,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169117279] [2021-11-03 02:43:10,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:43:10,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:43:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:43:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:43:11,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:43:11,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169117279] [2021-11-03 02:43:11,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169117279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:43:11,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:43:11,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:43:11,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337753749] [2021-11-03 02:43:11,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:43:11,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:43:11,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:43:11,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:43:11,272 INFO L87 Difference]: Start difference. First operand has 12148 states, 12014 states have (on average 1.3187947394706176) internal successors, (15844), 12147 states have internal predecessors, (15844), 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 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-11-03 02:43:12,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:43:32,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:43:38,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:43:53,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:44:17,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:44:21,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:44:21,951 INFO L93 Difference]: Finished difference Result 35187 states and 45897 transitions. [2021-11-03 02:44:21,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:44:21,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2021-11-03 02:44:21,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:44:22,056 INFO L225 Difference]: With dead ends: 35187 [2021-11-03 02:44:22,056 INFO L226 Difference]: Without dead ends: 22527 [2021-11-03 02:44:22,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:44:22,094 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 15126 mSDsluCounter, 14609 mSDsCounter, 0 mSdLazyCounter, 29500 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62134.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15126 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 29528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 76.06ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 29500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69147.72ms IncrementalHoareTripleChecker+Time [2021-11-03 02:44:22,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15126 Valid, 676 Invalid, 29528 Unknown, 0 Unchecked, 76.06ms Time], IncrementalHoareTripleChecker [28 Valid, 29500 Invalid, 0 Unknown, 0 Unchecked, 69147.72ms Time] [2021-11-03 02:44:22,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22527 states. [2021-11-03 02:44:22,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22527 to 21420. [2021-11-03 02:44:22,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21420 states, 21286 states have (on average 1.2841773935920324) internal successors, (27335), 21419 states have internal predecessors, (27335), 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) [2021-11-03 02:44:22,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21420 states to 21420 states and 27335 transitions. [2021-11-03 02:44:22,727 INFO L78 Accepts]: Start accepts. Automaton has 21420 states and 27335 transitions. Word has length 55 [2021-11-03 02:44:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:44:22,729 INFO L470 AbstractCegarLoop]: Abstraction has 21420 states and 27335 transitions. [2021-11-03 02:44:22,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2021-11-03 02:44:22,734 INFO L276 IsEmpty]: Start isEmpty. Operand 21420 states and 27335 transitions. [2021-11-03 02:44:22,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-03 02:44:22,738 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:44:22,738 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 02:44:22,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 02:44:22,739 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 131 more)] === [2021-11-03 02:44:22,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:44:22,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1116887855, now seen corresponding path program 1 times [2021-11-03 02:44:22,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:44:22,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540440201] [2021-11-03 02:44:22,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:44:22,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:44:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:44:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:44:22,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:44:22,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540440201] [2021-11-03 02:44:22,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540440201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:44:22,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:44:22,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:44:22,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883533435] [2021-11-03 02:44:22,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:44:22,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:44:22,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:44:22,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:44:22,999 INFO L87 Difference]: Start difference. First operand 21420 states and 27335 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-03 02:44:25,062 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:44:29,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:44:49,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:45:11,233 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:45:13,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:45:22,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:45:29,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:45:37,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:45:38,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:45:46,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:45:51,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:45:51,193 INFO L93 Difference]: Finished difference Result 60064 states and 76699 transitions. [2021-11-03 02:45:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:45:51,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2021-11-03 02:45:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:45:51,326 INFO L225 Difference]: With dead ends: 60064 [2021-11-03 02:45:51,326 INFO L226 Difference]: Without dead ends: 38752 [2021-11-03 02:45:51,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:45:51,367 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 13949 mSDsluCounter, 12638 mSDsCounter, 0 mSdLazyCounter, 27491 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75488.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13949 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 27500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.90ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27491 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 86617.02ms IncrementalHoareTripleChecker+Time [2021-11-03 02:45:51,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13949 Valid, 0 Invalid, 27500 Unknown, 0 Unchecked, 49.90ms Time], IncrementalHoareTripleChecker [7 Valid, 27491 Invalid, 2 Unknown, 0 Unchecked, 86617.02ms Time] [2021-11-03 02:45:51,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38752 states. [2021-11-03 02:45:52,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38752 to 38584. [2021-11-03 02:45:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38584 states, 38450 states have (on average 1.28444733420026) internal successors, (49387), 38583 states have internal predecessors, (49387), 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) [2021-11-03 02:45:52,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38584 states to 38584 states and 49387 transitions. [2021-11-03 02:45:52,367 INFO L78 Accepts]: Start accepts. Automaton has 38584 states and 49387 transitions. Word has length 56 [2021-11-03 02:45:52,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:45:52,367 INFO L470 AbstractCegarLoop]: Abstraction has 38584 states and 49387 transitions. [2021-11-03 02:45:52,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-03 02:45:52,368 INFO L276 IsEmpty]: Start isEmpty. Operand 38584 states and 49387 transitions. [2021-11-03 02:45:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-03 02:45:52,370 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:45:52,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 02:45:52,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 02:45:52,372 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 131 more)] === [2021-11-03 02:45:52,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:45:52,372 INFO L85 PathProgramCache]: Analyzing trace with hash 356043903, now seen corresponding path program 1 times [2021-11-03 02:45:52,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:45:52,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072798537] [2021-11-03 02:45:52,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:45:52,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:45:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:45:52,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:45:52,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:45:52,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072798537] [2021-11-03 02:45:52,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072798537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:45:52,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:45:52,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:45:52,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051802510] [2021-11-03 02:45:52,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:45:52,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:45:52,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:45:52,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:45:52,586 INFO L87 Difference]: Start difference. First operand 38584 states and 49387 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-03 02:45:53,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:45:55,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:46:08,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:46:34,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:47:44,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:47:49,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:47:49,474 INFO L93 Difference]: Finished difference Result 104202 states and 133609 transitions. [2021-11-03 02:47:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:47:49,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2021-11-03 02:47:49,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:47:49,652 INFO L225 Difference]: With dead ends: 104202 [2021-11-03 02:47:49,653 INFO L226 Difference]: Without dead ends: 65726 [2021-11-03 02:47:49,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.51ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:47:49,733 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 11220 mSDsluCounter, 14375 mSDsCounter, 0 mSdLazyCounter, 29305 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94640.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11220 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.86ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 29305 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 114735.98ms IncrementalHoareTripleChecker+Time [2021-11-03 02:47:49,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11220 Valid, 0 Invalid, 29319 Unknown, 0 Unchecked, 69.86ms Time], IncrementalHoareTripleChecker [13 Valid, 29305 Invalid, 1 Unknown, 0 Unchecked, 114735.98ms Time] [2021-11-03 02:47:49,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65726 states. [2021-11-03 02:47:50,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65726 to 64496. [2021-11-03 02:47:51,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64496 states, 64362 states have (on average 1.2888505639973897) internal successors, (82953), 64495 states have internal predecessors, (82953), 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) [2021-11-03 02:47:51,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64496 states to 64496 states and 82953 transitions. [2021-11-03 02:47:51,191 INFO L78 Accepts]: Start accepts. Automaton has 64496 states and 82953 transitions. Word has length 59 [2021-11-03 02:47:51,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:47:51,191 INFO L470 AbstractCegarLoop]: Abstraction has 64496 states and 82953 transitions. [2021-11-03 02:47:51,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-03 02:47:51,192 INFO L276 IsEmpty]: Start isEmpty. Operand 64496 states and 82953 transitions. [2021-11-03 02:47:51,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 02:47:51,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:47:51,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 02:47:51,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 02:47:51,193 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr102ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 131 more)] === [2021-11-03 02:47:51,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:47:51,194 INFO L85 PathProgramCache]: Analyzing trace with hash -783483444, now seen corresponding path program 1 times [2021-11-03 02:47:51,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:47:51,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875083752] [2021-11-03 02:47:51,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:47:51,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:47:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:47:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:47:51,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:47:51,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875083752] [2021-11-03 02:47:51,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875083752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:47:51,366 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:47:51,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:47:51,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599250603] [2021-11-03 02:47:51,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:47:51,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:47:51,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:47:51,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:47:51,368 INFO L87 Difference]: Start difference. First operand 64496 states and 82953 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 02:47:52,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:47:53,657 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:48:17,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:48:19,654 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:48:25,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:49:55,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:49:55,064 INFO L93 Difference]: Finished difference Result 115047 states and 147884 transitions. [2021-11-03 02:49:55,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:49:55,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-03 02:49:55,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:49:55,187 INFO L225 Difference]: With dead ends: 115047 [2021-11-03 02:49:55,187 INFO L226 Difference]: Without dead ends: 50659 [2021-11-03 02:49:55,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:49:55,260 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 6994 mSDsluCounter, 14773 mSDsCounter, 0 mSdLazyCounter, 29858 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95359.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6994 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 29880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 72.19ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 29858 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121806.54ms IncrementalHoareTripleChecker+Time [2021-11-03 02:49:55,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6994 Valid, 0 Invalid, 29880 Unknown, 0 Unchecked, 72.19ms Time], IncrementalHoareTripleChecker [21 Valid, 29858 Invalid, 1 Unknown, 0 Unchecked, 121806.54ms Time] [2021-11-03 02:49:55,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50659 states. [2021-11-03 02:49:56,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50659 to 49903. [2021-11-03 02:49:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49903 states, 49769 states have (on average 1.28939701420563) internal successors, (64172), 49902 states have internal predecessors, (64172), 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) [2021-11-03 02:49:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49903 states to 49903 states and 64172 transitions. [2021-11-03 02:49:56,331 INFO L78 Accepts]: Start accepts. Automaton has 49903 states and 64172 transitions. Word has length 60 [2021-11-03 02:49:56,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:49:56,333 INFO L470 AbstractCegarLoop]: Abstraction has 49903 states and 64172 transitions. [2021-11-03 02:49:56,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 02:49:56,333 INFO L276 IsEmpty]: Start isEmpty. Operand 49903 states and 64172 transitions. [2021-11-03 02:49:56,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-03 02:49:56,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:49:56,337 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 02:49:56,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 02:49:56,338 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 131 more)] === [2021-11-03 02:49:56,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:49:56,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1515280706, now seen corresponding path program 1 times [2021-11-03 02:49:56,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:49:56,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566493233] [2021-11-03 02:49:56,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:49:56,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:49:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:49:56,557 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:49:56,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:49:56,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566493233] [2021-11-03 02:49:56,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566493233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:49:56,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:49:56,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:49:56,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004306460] [2021-11-03 02:49:56,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:49:56,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:49:56,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:49:56,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:49:56,561 INFO L87 Difference]: Start difference. First operand 49903 states and 64172 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-03 02:49:57,567 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:49:59,810 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:51:11,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:51:26,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:52:07,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:52:39,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:52:52,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 02:52:52,533 INFO L93 Difference]: Finished difference Result 134935 states and 173448 transitions. [2021-11-03 02:52:52,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 02:52:52,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2021-11-03 02:52:52,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 02:52:52,687 INFO L225 Difference]: With dead ends: 134935 [2021-11-03 02:52:52,687 INFO L226 Difference]: Without dead ends: 85447 [2021-11-03 02:52:52,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:52:52,750 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 11775 mSDsluCounter, 14810 mSDsCounter, 0 mSdLazyCounter, 30059 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 127721.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11775 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 80.50ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30059 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 173473.19ms IncrementalHoareTripleChecker+Time [2021-11-03 02:52:52,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11775 Valid, 0 Invalid, 30065 Unknown, 0 Unchecked, 80.50ms Time], IncrementalHoareTripleChecker [5 Valid, 30059 Invalid, 1 Unknown, 0 Unchecked, 173473.19ms Time] [2021-11-03 02:52:52,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85447 states. [2021-11-03 02:52:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85447 to 85279. [2021-11-03 02:52:54,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85279 states, 85145 states have (on average 1.2880380527335722) internal successors, (109670), 85278 states have internal predecessors, (109670), 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) [2021-11-03 02:52:54,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85279 states to 85279 states and 109670 transitions. [2021-11-03 02:52:54,573 INFO L78 Accepts]: Start accepts. Automaton has 85279 states and 109670 transitions. Word has length 94 [2021-11-03 02:52:54,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 02:52:54,574 INFO L470 AbstractCegarLoop]: Abstraction has 85279 states and 109670 transitions. [2021-11-03 02:52:54,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-03 02:52:54,575 INFO L276 IsEmpty]: Start isEmpty. Operand 85279 states and 109670 transitions. [2021-11-03 02:52:54,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-03 02:52:54,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 02:52:54,578 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 02:52:54,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 02:52:54,578 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 131 more)] === [2021-11-03 02:52:54,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 02:52:54,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1768569340, now seen corresponding path program 1 times [2021-11-03 02:52:54,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 02:52:54,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470435547] [2021-11-03 02:52:54,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 02:52:54,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 02:52:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 02:52:54,757 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 02:52:54,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 02:52:54,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470435547] [2021-11-03 02:52:54,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470435547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 02:52:54,758 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 02:52:54,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 02:52:54,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762404620] [2021-11-03 02:52:54,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 02:52:54,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 02:52:54,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 02:52:54,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 02:52:54,760 INFO L87 Difference]: Start difference. First operand 85279 states and 109670 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-03 02:52:55,850 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:52:57,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:55:18,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:55:20,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:56:03,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 02:56:05,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15