./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-natsemi-natsemi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-natsemi-natsemi.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 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 04:02:24,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 04:02:24,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 04:02:24,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 04:02:24,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 04:02:24,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 04:02:24,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 04:02:24,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 04:02:24,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 04:02:24,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 04:02:24,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 04:02:24,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 04:02:24,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 04:02:24,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 04:02:24,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 04:02:24,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 04:02:24,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 04:02:24,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 04:02:24,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 04:02:24,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 04:02:24,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 04:02:24,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 04:02:24,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 04:02:24,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 04:02:24,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 04:02:24,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 04:02:24,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 04:02:24,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 04:02:24,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 04:02:24,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 04:02:24,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 04:02:24,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 04:02:24,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 04:02:24,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 04:02:24,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 04:02:24,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 04:02:24,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 04:02:24,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 04:02:24,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 04:02:24,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 04:02:24,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 04:02:24,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 04:02:24,895 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 04:02:24,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 04:02:24,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 04:02:24,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 04:02:24,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 04:02:24,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 04:02:24,897 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 04:02:24,898 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 04:02:24,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 04:02:24,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 04:02:24,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 04:02:24,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 04:02:24,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 04:02:24,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 04:02:24,899 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 04:02:24,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 04:02:24,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 04:02:24,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 04:02:24,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 04:02:24,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:02:24,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 04:02:24,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 04:02:24,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 04:02:24,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 04:02:24,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 04:02:24,901 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 04:02:24,901 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 04:02:24,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 04:02:24,901 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 04:02:24,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b [2021-11-23 04:02:25,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 04:02:25,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 04:02:25,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 04:02:25,115 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 04:02:25,117 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 04:02:25,117 INFO L432 ainManager$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-natsemi-natsemi.cil.i [2021-11-23 04:02:25,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d8b679f/f1e9bba88f67452ba59f917e167e87f4/FLAG76ef42866 [2021-11-23 04:02:25,861 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 04:02:25,861 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-natsemi-natsemi.cil.i [2021-11-23 04:02:25,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d8b679f/f1e9bba88f67452ba59f917e167e87f4/FLAG76ef42866 [2021-11-23 04:02:26,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5d8b679f/f1e9bba88f67452ba59f917e167e87f4 [2021-11-23 04:02:26,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 04:02:26,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 04:02:26,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 04:02:26,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 04:02:26,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 04:02:26,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:26" (1/1) ... [2021-11-23 04:02:26,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758338a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:26, skipping insertion in model container [2021-11-23 04:02:26,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:02:26" (1/1) ... [2021-11-23 04:02:26,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 04:02:26,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 04:02:28,099 WARN L230 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-natsemi-natsemi.cil.i[386207,386220] [2021-11-23 04:02:28,101 WARN L230 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-natsemi-natsemi.cil.i[386376,386389] [2021-11-23 04:02:28,101 WARN L230 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-natsemi-natsemi.cil.i[386543,386556] [2021-11-23 04:02:28,102 WARN L230 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-natsemi-natsemi.cil.i[386711,386724] [2021-11-23 04:02:28,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:02:28,182 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 04:02:28,472 WARN L230 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-natsemi-natsemi.cil.i[386207,386220] [2021-11-23 04:02:28,473 WARN L230 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-natsemi-natsemi.cil.i[386376,386389] [2021-11-23 04:02:28,474 WARN L230 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-natsemi-natsemi.cil.i[386543,386556] [2021-11-23 04:02:28,474 WARN L230 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-natsemi-natsemi.cil.i[386711,386724] [2021-11-23 04:02:28,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:02:28,714 INFO L208 MainTranslator]: Completed translation [2021-11-23 04:02:28,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28 WrapperNode [2021-11-23 04:02:28,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 04:02:28,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 04:02:28,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 04:02:28,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 04:02:28,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (1/1) ... [2021-11-23 04:02:28,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (1/1) ... [2021-11-23 04:02:30,167 INFO L137 Inliner]: procedures = 512, calls = 2538, calls flagged for inlining = 1228, calls inlined = 10039, statements flattened = 85860 [2021-11-23 04:02:30,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 04:02:30,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 04:02:30,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 04:02:30,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 04:02:30,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (1/1) ... [2021-11-23 04:02:30,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (1/1) ... [2021-11-23 04:02:30,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (1/1) ... [2021-11-23 04:02:30,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (1/1) ... [2021-11-23 04:02:31,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (1/1) ... [2021-11-23 04:02:32,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (1/1) ... [2021-11-23 04:02:32,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (1/1) ... [2021-11-23 04:02:32,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 04:02:32,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 04:02:32,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 04:02:32,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 04:02:32,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (1/1) ... [2021-11-23 04:02:32,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:02:32,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:02:32,486 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) [2021-11-23 04:02:32,507 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 [2021-11-23 04:02:32,519 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-23 04:02:32,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 04:02:32,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 04:02:32,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 04:02:32,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 04:02:32,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 04:02:32,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 04:02:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 04:02:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 04:02:32,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 04:02:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 04:02:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 04:02:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 04:02:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 04:02:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 04:02:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 04:02:32,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 04:02:33,335 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 04:02:33,337 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 04:02:48,382 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-23 04:02:48,382 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-23 04:02:48,382 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 04:02:48,382 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 04:02:48,382 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 04:02:48,386 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 04:02:48,388 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 04:02:48,437 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 04:02:48,438 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 04:02:48,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:48 BoogieIcfgContainer [2021-11-23 04:02:48,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 04:02:48,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 04:02:48,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 04:02:48,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 04:02:48,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:02:26" (1/3) ... [2021-11-23 04:02:48,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77308772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:48, skipping insertion in model container [2021-11-23 04:02:48,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:02:28" (2/3) ... [2021-11-23 04:02:48,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77308772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:02:48, skipping insertion in model container [2021-11-23 04:02:48,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:02:48" (3/3) ... [2021-11-23 04:02:48,458 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2021-11-23 04:02:48,462 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 04:02:48,462 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2021-11-23 04:02:48,537 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 04:02:48,542 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 [2021-11-23 04:02:48,542 INFO L340 AbstractCegarLoop]: Starting to check reachability of 98 error locations. [2021-11-23 04:02:48,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 14435 states, 14337 states have (on average 1.1980191113901095) internal successors, (17176), 14434 states have internal predecessors, (17176), 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) [2021-11-23 04:02:48,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-23 04:02:48,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:48,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:02:48,698 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:02:48,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:48,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1869149797, now seen corresponding path program 1 times [2021-11-23 04:02:48,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:48,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416095657] [2021-11-23 04:02:48,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:48,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:49,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:02:49,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:49,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416095657] [2021-11-23 04:02:49,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416095657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:49,149 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:49,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:49,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3889887] [2021-11-23 04:02:49,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:49,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:02:49,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:49,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:02:49,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:02:49,213 INFO L87 Difference]: Start difference. First operand has 14435 states, 14337 states have (on average 1.1980191113901095) internal successors, (17176), 14434 states have internal predecessors, (17176), 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 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-11-23 04:02:49,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:49,981 INFO L93 Difference]: Finished difference Result 42765 states and 50846 transitions. [2021-11-23 04:02:49,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:02:49,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2021-11-23 04:02:49,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:50,340 INFO L225 Difference]: With dead ends: 42765 [2021-11-23 04:02:50,340 INFO L226 Difference]: Without dead ends: 28069 [2021-11-23 04:02:50,378 INFO L932 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 [2021-11-23 04:02:50,380 INFO L933 BasicCegarLoop]: 17036 mSDtfsCounter, 16615 mSDsluCounter, 16987 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16615 SdHoareTripleChecker+Valid, 34023 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:50,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16615 Valid, 34023 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:50,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28069 states. [2021-11-23 04:02:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28069 to 27945. [2021-11-23 04:02:51,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27945 states, 27847 states have (on average 1.1763206090422667) internal successors, (32757), 27944 states have internal predecessors, (32757), 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) [2021-11-23 04:02:51,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27945 states to 27945 states and 32757 transitions. [2021-11-23 04:02:51,295 INFO L78 Accepts]: Start accepts. Automaton has 27945 states and 32757 transitions. Word has length 65 [2021-11-23 04:02:51,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:51,296 INFO L470 AbstractCegarLoop]: Abstraction has 27945 states and 32757 transitions. [2021-11-23 04:02:51,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2021-11-23 04:02:51,297 INFO L276 IsEmpty]: Start isEmpty. Operand 27945 states and 32757 transitions. [2021-11-23 04:02:51,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-23 04:02:51,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:51,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:02:51,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 04:02:51,301 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:02:51,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:51,301 INFO L85 PathProgramCache]: Analyzing trace with hash -474860829, now seen corresponding path program 1 times [2021-11-23 04:02:51,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:51,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633374181] [2021-11-23 04:02:51,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:51,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:02:51,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:51,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633374181] [2021-11-23 04:02:51,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633374181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:51,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:51,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:51,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709682461] [2021-11-23 04:02:51,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:51,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:02:51,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:51,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:02:51,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:02:51,457 INFO L87 Difference]: Start difference. First operand 27945 states and 32757 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-23 04:02:52,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:52,345 INFO L93 Difference]: Finished difference Result 53911 states and 63235 transitions. [2021-11-23 04:02:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:02:52,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2021-11-23 04:02:52,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:52,422 INFO L225 Difference]: With dead ends: 53911 [2021-11-23 04:02:52,424 INFO L226 Difference]: Without dead ends: 26091 [2021-11-23 04:02:52,490 INFO L932 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 [2021-11-23 04:02:52,493 INFO L933 BasicCegarLoop]: 16565 mSDtfsCounter, 7162 mSDsluCounter, 16421 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7162 SdHoareTripleChecker+Valid, 32986 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:52,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7162 Valid, 32986 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:52,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26091 states. [2021-11-23 04:02:53,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26091 to 25961. [2021-11-23 04:02:53,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25961 states, 25863 states have (on average 1.1788655608398098) internal successors, (30489), 25960 states have internal predecessors, (30489), 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) [2021-11-23 04:02:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25961 states to 25961 states and 30489 transitions. [2021-11-23 04:02:53,229 INFO L78 Accepts]: Start accepts. Automaton has 25961 states and 30489 transitions. Word has length 68 [2021-11-23 04:02:53,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:53,230 INFO L470 AbstractCegarLoop]: Abstraction has 25961 states and 30489 transitions. [2021-11-23 04:02:53,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-23 04:02:53,230 INFO L276 IsEmpty]: Start isEmpty. Operand 25961 states and 30489 transitions. [2021-11-23 04:02:53,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-23 04:02:53,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:53,232 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:02:53,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 04:02:53,233 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:02:53,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:53,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2003557353, now seen corresponding path program 1 times [2021-11-23 04:02:53,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:53,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553058710] [2021-11-23 04:02:53,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:53,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:53,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:02:53,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:53,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553058710] [2021-11-23 04:02:53,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553058710] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:53,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:53,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:53,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381697416] [2021-11-23 04:02:53,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:53,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:02:53,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:53,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:02:53,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:02:53,349 INFO L87 Difference]: Start difference. First operand 25961 states and 30489 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-23 04:02:54,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:54,096 INFO L93 Difference]: Finished difference Result 59538 states and 69861 transitions. [2021-11-23 04:02:54,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:02:54,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-23 04:02:54,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:54,169 INFO L225 Difference]: With dead ends: 59538 [2021-11-23 04:02:54,170 INFO L226 Difference]: Without dead ends: 33702 [2021-11-23 04:02:54,218 INFO L932 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 [2021-11-23 04:02:54,220 INFO L933 BasicCegarLoop]: 16576 mSDtfsCounter, 11622 mSDsluCounter, 16472 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11622 SdHoareTripleChecker+Valid, 33048 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:54,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11622 Valid, 33048 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33702 states. [2021-11-23 04:02:54,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33702 to 32800. [2021-11-23 04:02:54,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32800 states, 32702 states have (on average 1.1780930829918659) internal successors, (38526), 32799 states have internal predecessors, (38526), 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) [2021-11-23 04:02:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32800 states to 32800 states and 38526 transitions. [2021-11-23 04:02:55,034 INFO L78 Accepts]: Start accepts. Automaton has 32800 states and 38526 transitions. Word has length 70 [2021-11-23 04:02:55,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:55,035 INFO L470 AbstractCegarLoop]: Abstraction has 32800 states and 38526 transitions. [2021-11-23 04:02:55,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-23 04:02:55,036 INFO L276 IsEmpty]: Start isEmpty. Operand 32800 states and 38526 transitions. [2021-11-23 04:02:55,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 04:02:55,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:55,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:02:55,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 04:02:55,038 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr96ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:02:55,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:55,038 INFO L85 PathProgramCache]: Analyzing trace with hash -683850064, now seen corresponding path program 1 times [2021-11-23 04:02:55,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:55,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80284779] [2021-11-23 04:02:55,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:55,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:55,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:02:55,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:55,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80284779] [2021-11-23 04:02:55,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80284779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:55,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:55,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:55,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438132420] [2021-11-23 04:02:55,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:55,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:02:55,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:55,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:02:55,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:02:55,154 INFO L87 Difference]: Start difference. First operand 32800 states and 38526 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-23 04:02:56,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:56,139 INFO L93 Difference]: Finished difference Result 86811 states and 101970 transitions. [2021-11-23 04:02:56,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:02:56,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-23 04:02:56,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:56,256 INFO L225 Difference]: With dead ends: 86811 [2021-11-23 04:02:56,256 INFO L226 Difference]: Without dead ends: 54136 [2021-11-23 04:02:56,308 INFO L932 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 [2021-11-23 04:02:56,310 INFO L933 BasicCegarLoop]: 16573 mSDtfsCounter, 14474 mSDsluCounter, 15477 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14474 SdHoareTripleChecker+Valid, 32050 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:56,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14474 Valid, 32050 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:02:56,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54136 states. [2021-11-23 04:02:57,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54136 to 53745. [2021-11-23 04:02:57,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53745 states, 53647 states have (on average 1.178127388297575) internal successors, (63203), 53744 states have internal predecessors, (63203), 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) [2021-11-23 04:02:57,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53745 states to 53745 states and 63203 transitions. [2021-11-23 04:02:57,251 INFO L78 Accepts]: Start accepts. Automaton has 53745 states and 63203 transitions. Word has length 71 [2021-11-23 04:02:57,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:02:57,251 INFO L470 AbstractCegarLoop]: Abstraction has 53745 states and 63203 transitions. [2021-11-23 04:02:57,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-23 04:02:57,251 INFO L276 IsEmpty]: Start isEmpty. Operand 53745 states and 63203 transitions. [2021-11-23 04:02:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 04:02:57,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:02:57,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:02:57,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 04:02:57,255 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr88ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:02:57,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:02:57,256 INFO L85 PathProgramCache]: Analyzing trace with hash -797370056, now seen corresponding path program 1 times [2021-11-23 04:02:57,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:02:57,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857634336] [2021-11-23 04:02:57,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:02:57,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:02:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:02:57,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:02:57,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:02:57,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857634336] [2021-11-23 04:02:57,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857634336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:02:57,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:02:57,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:02:57,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044636267] [2021-11-23 04:02:57,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:02:57,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:02:57,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:02:57,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:02:57,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:02:57,501 INFO L87 Difference]: Start difference. First operand 53745 states and 63203 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-23 04:02:59,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:02:59,175 INFO L93 Difference]: Finished difference Result 160284 states and 188486 transitions. [2021-11-23 04:02:59,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:02:59,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2021-11-23 04:02:59,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:02:59,417 INFO L225 Difference]: With dead ends: 160284 [2021-11-23 04:02:59,418 INFO L226 Difference]: Without dead ends: 106664 [2021-11-23 04:02:59,500 INFO L932 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 [2021-11-23 04:02:59,501 INFO L933 BasicCegarLoop]: 16580 mSDtfsCounter, 16356 mSDsluCounter, 16557 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16356 SdHoareTripleChecker+Valid, 33137 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:02:59,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16356 Valid, 33137 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:02:59,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106664 states. [2021-11-23 04:03:01,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106664 to 106328. [2021-11-23 04:03:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106328 states, 106230 states have (on average 1.1776805045655654) internal successors, (125105), 106327 states have internal predecessors, (125105), 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) [2021-11-23 04:03:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106328 states to 106328 states and 125105 transitions. [2021-11-23 04:03:01,788 INFO L78 Accepts]: Start accepts. Automaton has 106328 states and 125105 transitions. Word has length 77 [2021-11-23 04:03:01,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:03:01,788 INFO L470 AbstractCegarLoop]: Abstraction has 106328 states and 125105 transitions. [2021-11-23 04:03:01,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-23 04:03:01,789 INFO L276 IsEmpty]: Start isEmpty. Operand 106328 states and 125105 transitions. [2021-11-23 04:03:01,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-23 04:03:01,790 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:03:01,790 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:03:01,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 04:03:01,791 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:03:01,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:03:01,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1613602174, now seen corresponding path program 1 times [2021-11-23 04:03:01,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:03:01,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563541220] [2021-11-23 04:03:01,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:03:01,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:03:01,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:03:02,149 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:03:02,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:03:02,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563541220] [2021-11-23 04:03:02,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563541220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:03:02,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:03:02,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:03:02,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717236192] [2021-11-23 04:03:02,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:03:02,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:03:02,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:03:02,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:03:02,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:03:02,151 INFO L87 Difference]: Start difference. First operand 106328 states and 125105 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-23 04:03:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:03:05,373 INFO L93 Difference]: Finished difference Result 317828 states and 374014 transitions. [2021-11-23 04:03:05,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:03:05,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2021-11-23 04:03:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:03:06,102 INFO L225 Difference]: With dead ends: 317828 [2021-11-23 04:03:06,102 INFO L226 Difference]: Without dead ends: 211730 [2021-11-23 04:03:06,283 INFO L932 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 [2021-11-23 04:03:06,284 INFO L933 BasicCegarLoop]: 16778 mSDtfsCounter, 16226 mSDsluCounter, 16561 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16226 SdHoareTripleChecker+Valid, 33339 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 04:03:06,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16226 Valid, 33339 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 04:03:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211730 states. [2021-11-23 04:03:10,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211730 to 211606. [2021-11-23 04:03:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211606 states, 211508 states have (on average 1.1774070011536206) internal successors, (249031), 211605 states have internal predecessors, (249031), 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) [2021-11-23 04:03:11,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211606 states to 211606 states and 249031 transitions. [2021-11-23 04:03:11,673 INFO L78 Accepts]: Start accepts. Automaton has 211606 states and 249031 transitions. Word has length 95 [2021-11-23 04:03:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:03:11,673 INFO L470 AbstractCegarLoop]: Abstraction has 211606 states and 249031 transitions. [2021-11-23 04:03:11,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-23 04:03:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand 211606 states and 249031 transitions. [2021-11-23 04:03:11,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-23 04:03:11,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:03:11,675 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:03:11,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 04:03:11,675 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 95 more)] === [2021-11-23 04:03:11,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:03:11,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1093017220, now seen corresponding path program 1 times [2021-11-23 04:03:11,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:03:11,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374050157] [2021-11-23 04:03:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:03:11,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:03:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:03:11,876 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 04:03:11,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:03:11,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374050157] [2021-11-23 04:03:11,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374050157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:03:11,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:03:11,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:03:11,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458982061] [2021-11-23 04:03:11,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:03:11,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 04:03:11,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:03:11,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 04:03:11,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 04:03:11,879 INFO L87 Difference]: Start difference. First operand 211606 states and 249031 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 3 states have internal predecessors, (86), 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)