./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.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 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 16:42:24,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 16:42:24,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 16:42:24,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 16:42:24,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 16:42:24,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 16:42:24,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 16:42:24,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 16:42:24,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 16:42:24,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 16:42:24,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 16:42:24,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 16:42:24,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 16:42:24,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 16:42:24,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 16:42:24,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 16:42:24,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 16:42:24,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 16:42:24,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 16:42:24,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 16:42:24,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 16:42:24,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 16:42:24,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 16:42:24,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 16:42:24,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 16:42:24,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 16:42:24,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 16:42:24,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 16:42:24,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 16:42:24,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 16:42:24,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 16:42:24,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 16:42:24,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 16:42:24,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 16:42:24,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 16:42:24,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 16:42:24,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 16:42:24,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 16:42:24,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 16:42:24,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 16:42:24,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 16:42:24,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 16:42:24,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 16:42:24,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 16:42:24,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 16:42:24,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 16:42:24,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 16:42:24,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 16:42:24,980 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 16:42:24,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 16:42:24,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 16:42:24,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 16:42:24,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 16:42:24,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 16:42:24,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 16:42:24,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 16:42:24,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 16:42:24,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 16:42:24,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 16:42:24,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 16:42:24,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 16:42:24,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:42:24,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 16:42:24,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 16:42:24,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 16:42:24,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 16:42:24,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 16:42:24,983 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 16:42:24,983 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 16:42:24,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 16:42:24,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 16:42:24,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 [2021-11-07 16:42:25,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 16:42:25,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 16:42:25,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 16:42:25,175 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 16:42:25,176 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 16:42:25,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-07 16:42:25,217 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea70ce33/66f0564489a3429eaea0e08562c7f1d1/FLAG574004c32 [2021-11-07 16:42:25,885 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 16:42:25,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-07 16:42:25,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea70ce33/66f0564489a3429eaea0e08562c7f1d1/FLAG574004c32 [2021-11-07 16:42:26,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea70ce33/66f0564489a3429eaea0e08562c7f1d1 [2021-11-07 16:42:26,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 16:42:26,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 16:42:26,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 16:42:26,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 16:42:26,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 16:42:26,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:42:26" (1/1) ... [2021-11-07 16:42:26,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c8e2897 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:26, skipping insertion in model container [2021-11-07 16:42:26,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:42:26" (1/1) ... [2021-11-07 16:42:26,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 16:42:26,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 16:42:28,214 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-07 16:42:28,216 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-07 16:42:28,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:42:28,261 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 16:42:28,857 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-07 16:42:28,857 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-07 16:42:28,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:42:28,991 INFO L208 MainTranslator]: Completed translation [2021-11-07 16:42:28,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28 WrapperNode [2021-11-07 16:42:28,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 16:42:28,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 16:42:28,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 16:42:28,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 16:42:28,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (1/1) ... [2021-11-07 16:42:29,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (1/1) ... [2021-11-07 16:42:35,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 16:42:35,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 16:42:35,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 16:42:35,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 16:42:35,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (1/1) ... [2021-11-07 16:42:35,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (1/1) ... [2021-11-07 16:42:36,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (1/1) ... [2021-11-07 16:42:36,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (1/1) ... [2021-11-07 16:42:38,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (1/1) ... [2021-11-07 16:42:39,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (1/1) ... [2021-11-07 16:42:39,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (1/1) ... [2021-11-07 16:42:40,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 16:42:40,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 16:42:40,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 16:42:40,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 16:42:40,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (1/1) ... [2021-11-07 16:42:40,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:42:40,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:42:40,633 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) [2021-11-07 16:42:40,666 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 [2021-11-07 16:42:40,698 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-07 16:42:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-07 16:42:40,700 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-07 16:42:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-07 16:42:40,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 16:42:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 16:42:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 16:42:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 16:42:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-07 16:42:40,704 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-07 16:42:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 16:42:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 16:42:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 16:42:40,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 16:42:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 16:42:40,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 16:42:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 16:42:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 16:42:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 16:42:40,705 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-07 16:42:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-07 16:42:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 16:42:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 16:42:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 16:42:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 16:42:40,706 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 16:42:40,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-07 16:43:43,734 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 16:43:43,734 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 16:43:43,734 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 16:43:43,734 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-07 16:43:43,734 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-07 16:43:43,735 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-07 16:43:43,735 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-07 16:43:43,735 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2021-11-07 16:43:43,735 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2021-11-07 16:43:43,735 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 16:43:43,736 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 16:43:43,741 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 16:43:43,742 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 16:43:43,742 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#14: havoc lmc_proto_type_#t~mem1372.base, lmc_proto_type_#t~mem1372.offset; [2021-11-07 16:43:43,743 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#10: havoc lmc_proto_type_#t~mem1372.base, lmc_proto_type_#t~mem1372.offset; [2021-11-07 16:43:43,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 16:43:43,800 INFO L299 CfgBuilder]: Removed 40644 assume(true) statements. [2021-11-07 16:43:43,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:43:43 BoogieIcfgContainer [2021-11-07 16:43:43,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 16:43:43,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 16:43:43,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 16:43:43,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 16:43:43,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:42:26" (1/3) ... [2021-11-07 16:43:43,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa34651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:43:43, skipping insertion in model container [2021-11-07 16:43:43,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:42:28" (2/3) ... [2021-11-07 16:43:43,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa34651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:43:43, skipping insertion in model container [2021-11-07 16:43:43,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:43:43" (3/3) ... [2021-11-07 16:43:43,826 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-07 16:43:43,829 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 16:43:43,829 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2021-11-07 16:43:43,924 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 16:43:43,929 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 [2021-11-07 16:43:43,929 INFO L340 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2021-11-07 16:43:44,220 INFO L276 IsEmpty]: Start isEmpty. Operand has 31582 states, 31532 states have (on average 1.2500317138145376) internal successors, (39416), 31548 states have internal predecessors, (39416), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-07 16:43:44,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 16:43:44,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:43:44,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:43:44,274 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 16:43:44,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:43:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash 398559688, now seen corresponding path program 1 times [2021-11-07 16:43:44,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:43:44,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180525211] [2021-11-07 16:43:44,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:43:44,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:43:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:43:44,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:43:44,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:43:44,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180525211] [2021-11-07 16:43:44,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180525211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:43:44,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:43:44,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:43:44,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622365934] [2021-11-07 16:43:44,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:43:44,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:43:44,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:43:44,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:43:44,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:43:45,015 INFO L87 Difference]: Start difference. First operand has 31582 states, 31532 states have (on average 1.2500317138145376) internal successors, (39416), 31548 states have internal predecessors, (39416), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-07 16:43:47,081 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:43:49,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:43:49,725 INFO L93 Difference]: Finished difference Result 88699 states and 110945 transitions. [2021-11-07 16:43:49,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:43:49,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2021-11-07 16:43:49,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:43:49,972 INFO L225 Difference]: With dead ends: 88699 [2021-11-07 16:43:49,973 INFO L226 Difference]: Without dead ends: 56933 [2021-11-07 16:43:50,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:43:50,106 INFO L933 BasicCegarLoop]: 45509 mSDtfsCounter, 32139 mSDsluCounter, 39375 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2301.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32139 SdHoareTripleChecker+Valid, 84884 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 166.59ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2543.81ms IncrementalHoareTripleChecker+Time [2021-11-07 16:43:50,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32139 Valid, 84884 Invalid, 100 Unknown, 0 Unchecked, 166.59ms Time], IncrementalHoareTripleChecker [21 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 2543.81ms Time] [2021-11-07 16:43:50,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56933 states. [2021-11-07 16:43:51,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56933 to 56911. [2021-11-07 16:43:51,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56911 states, 56832 states have (on average 1.2471846846846846) internal successors, (70880), 56852 states have internal predecessors, (70880), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2021-11-07 16:43:51,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56911 states to 56911 states and 70988 transitions. [2021-11-07 16:43:51,883 INFO L78 Accepts]: Start accepts. Automaton has 56911 states and 70988 transitions. Word has length 82 [2021-11-07 16:43:51,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:43:51,884 INFO L470 AbstractCegarLoop]: Abstraction has 56911 states and 70988 transitions. [2021-11-07 16:43:51,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2021-11-07 16:43:51,885 INFO L276 IsEmpty]: Start isEmpty. Operand 56911 states and 70988 transitions. [2021-11-07 16:43:51,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-07 16:43:51,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:43:51,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:43:51,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 16:43:51,917 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 16:43:51,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:43:51,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1038599362, now seen corresponding path program 1 times [2021-11-07 16:43:51,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:43:51,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368991481] [2021-11-07 16:43:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:43:51,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:43:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:43:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:43:52,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:43:52,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368991481] [2021-11-07 16:43:52,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368991481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:43:52,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:43:52,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:43:52,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507975177] [2021-11-07 16:43:52,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:43:52,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:43:52,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:43:52,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:43:52,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:43:52,124 INFO L87 Difference]: Start difference. First operand 56911 states and 70988 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-07 16:43:54,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:43:56,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:43:56,742 INFO L93 Difference]: Finished difference Result 169838 states and 211814 transitions. [2021-11-07 16:43:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:43:56,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 100 [2021-11-07 16:43:56,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:43:57,273 INFO L225 Difference]: With dead ends: 169838 [2021-11-07 16:43:57,274 INFO L226 Difference]: Without dead ends: 113051 [2021-11-07 16:43:57,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:43:57,492 INFO L933 BasicCegarLoop]: 39756 mSDtfsCounter, 38482 mSDsluCounter, 39035 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2188.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38482 SdHoareTripleChecker+Valid, 78791 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 73.59ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2372.42ms IncrementalHoareTripleChecker+Time [2021-11-07 16:43:57,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38482 Valid, 78791 Invalid, 59 Unknown, 0 Unchecked, 73.59ms Time], IncrementalHoareTripleChecker [15 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 2372.42ms Time] [2021-11-07 16:43:57,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113051 states. [2021-11-07 16:44:00,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113051 to 112979. [2021-11-07 16:44:00,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112979 states, 112838 states have (on average 1.2468228788174196) internal successors, (140689), 112862 states have internal predecessors, (140689), 104 states have call successors, (104), 24 states have call predecessors, (104), 24 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2021-11-07 16:44:00,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112979 states to 112979 states and 140897 transitions. [2021-11-07 16:44:00,586 INFO L78 Accepts]: Start accepts. Automaton has 112979 states and 140897 transitions. Word has length 100 [2021-11-07 16:44:00,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:44:00,587 INFO L470 AbstractCegarLoop]: Abstraction has 112979 states and 140897 transitions. [2021-11-07 16:44:00,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-07 16:44:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 112979 states and 140897 transitions. [2021-11-07 16:44:00,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 16:44:00,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:44:00,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:44:00,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 16:44:00,628 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 16:44:00,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:44:00,629 INFO L85 PathProgramCache]: Analyzing trace with hash 99742409, now seen corresponding path program 1 times [2021-11-07 16:44:00,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:44:00,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397379233] [2021-11-07 16:44:00,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:44:00,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:44:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:44:01,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:44:01,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:44:01,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397379233] [2021-11-07 16:44:01,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397379233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:44:01,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:44:01,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:44:01,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328351080] [2021-11-07 16:44:01,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:44:01,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:44:01,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:44:01,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:44:01,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:44:01,201 INFO L87 Difference]: Start difference. First operand 112979 states and 140897 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-07 16:44:03,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:44:07,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:44:07,960 INFO L93 Difference]: Finished difference Result 323543 states and 403886 transitions. [2021-11-07 16:44:07,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:44:07,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2021-11-07 16:44:07,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:44:08,732 INFO L225 Difference]: With dead ends: 323543 [2021-11-07 16:44:08,733 INFO L226 Difference]: Without dead ends: 210688 [2021-11-07 16:44:09,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:44:09,305 INFO L933 BasicCegarLoop]: 39193 mSDtfsCounter, 34290 mSDsluCounter, 39025 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2211.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34290 SdHoareTripleChecker+Valid, 78218 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 71.21ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2384.50ms IncrementalHoareTripleChecker+Time [2021-11-07 16:44:09,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34290 Valid, 78218 Invalid, 60 Unknown, 0 Unchecked, 71.21ms Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 2384.50ms Time] [2021-11-07 16:44:09,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210688 states. [2021-11-07 16:44:14,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210688 to 209262. [2021-11-07 16:44:14,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209262 states, 209013 states have (on average 1.2484199547396573) internal successors, (260936), 209049 states have internal predecessors, (260936), 188 states have call successors, (188), 48 states have call predecessors, (188), 48 states have return successors, (242), 188 states have call predecessors, (242), 188 states have call successors, (242) [2021-11-07 16:44:15,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209262 states to 209262 states and 261366 transitions. [2021-11-07 16:44:15,138 INFO L78 Accepts]: Start accepts. Automaton has 209262 states and 261366 transitions. Word has length 104 [2021-11-07 16:44:15,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:44:15,138 INFO L470 AbstractCegarLoop]: Abstraction has 209262 states and 261366 transitions. [2021-11-07 16:44:15,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-07 16:44:15,139 INFO L276 IsEmpty]: Start isEmpty. Operand 209262 states and 261366 transitions. [2021-11-07 16:44:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-07 16:44:15,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:44:15,180 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:44:15,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 16:44:15,181 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [lmc_running_resetErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 10 more)] === [2021-11-07 16:44:15,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:44:15,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1735980700, now seen corresponding path program 1 times [2021-11-07 16:44:15,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:44:15,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76105343] [2021-11-07 16:44:15,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:44:15,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:44:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:44:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:44:15,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:44:15,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76105343] [2021-11-07 16:44:15,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76105343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:44:15,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:44:15,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:44:15,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344817188] [2021-11-07 16:44:15,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:44:15,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:44:15,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:44:15,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:44:15,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:44:15,854 INFO L87 Difference]: Start difference. First operand 209262 states and 261366 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2021-11-07 16:44:17,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []