./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.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 28ad7165b7652313e24287c0ae583e63a8e735cceddf7021c32bc93d57d1e3d7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:14:53,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:14:53,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:14:53,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:14:53,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:14:53,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:14:53,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:14:53,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:14:53,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:14:53,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:14:53,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:14:53,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:14:53,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:14:53,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:14:53,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:14:53,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:14:53,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:14:53,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:14:53,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:14:54,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:14:54,005 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:14:54,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:14:54,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:14:54,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:14:54,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:14:54,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:14:54,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:14:54,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:14:54,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:14:54,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:14:54,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:14:54,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:14:54,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:14:54,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:14:54,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:14:54,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:14:54,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:14:54,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:14:54,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:14:54,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:14:54,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:14:54,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:14:54,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:14:54,067 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:14:54,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:14:54,068 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:14:54,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:14:54,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:14:54,070 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:14:54,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:14:54,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:14:54,071 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:14:54,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:14:54,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:14:54,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:14:54,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:14:54,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:14:54,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:14:54,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:14:54,073 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:14:54,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:14:54,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:14:54,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:14:54,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:14:54,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:14:54,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:14:54,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:14:54,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:14:54,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:14:54,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:14:54,075 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:14:54,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:14:54,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:14:54,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28ad7165b7652313e24287c0ae583e63a8e735cceddf7021c32bc93d57d1e3d7 [2022-07-23 00:14:54,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:14:54,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:14:54,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:14:54,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:14:54,393 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:14:54,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i [2022-07-23 00:14:54,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7312b443/ef4dc04fe63b4b40bf380a400461bdda/FLAGcbf16310a [2022-07-23 00:14:55,336 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:14:55,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i [2022-07-23 00:14:55,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7312b443/ef4dc04fe63b4b40bf380a400461bdda/FLAGcbf16310a [2022-07-23 00:14:55,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7312b443/ef4dc04fe63b4b40bf380a400461bdda [2022-07-23 00:14:55,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:14:55,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:14:55,849 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:14:55,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:14:55,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:14:55,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:14:55" (1/1) ... [2022-07-23 00:14:55,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12335aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:14:55, skipping insertion in model container [2022-07-23 00:14:55,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:14:55" (1/1) ... [2022-07-23 00:14:55,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:14:56,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:14:56,507 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6621] [2022-07-23 00:14:56,508 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6622-6623] [2022-07-23 00:14:57,714 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i[213931,213944] [2022-07-23 00:14:59,716 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-23 00:14:59,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:14:59,765 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:14:59,863 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6621] [2022-07-23 00:14:59,864 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6622-6623] [2022-07-23 00:14:59,927 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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i[213931,213944] [2022-07-23 00:15:00,278 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-07-23 00:15:00,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:15:00,393 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:15:00,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00 WrapperNode [2022-07-23 00:15:00,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:15:00,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:15:00,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:15:00,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:15:00,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (1/1) ... [2022-07-23 00:15:00,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (1/1) ... [2022-07-23 00:15:00,748 INFO L137 Inliner]: procedures = 383, calls = 6912, calls flagged for inlining = 191, calls inlined = 77, statements flattened = 11282 [2022-07-23 00:15:00,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:15:00,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:15:00,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:15:00,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:15:00,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (1/1) ... [2022-07-23 00:15:00,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (1/1) ... [2022-07-23 00:15:00,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (1/1) ... [2022-07-23 00:15:00,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (1/1) ... [2022-07-23 00:15:01,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (1/1) ... [2022-07-23 00:15:01,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (1/1) ... [2022-07-23 00:15:01,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (1/1) ... [2022-07-23 00:15:01,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:15:01,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:15:01,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:15:01,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:15:01,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (1/1) ... [2022-07-23 00:15:01,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:15:01,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:15:01,209 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) [2022-07-23 00:15:01,287 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 [2022-07-23 00:15:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-23 00:15:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-23 00:15:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-23 00:15:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-23 00:15:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_if_write [2022-07-23 00:15:01,327 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_if_write [2022-07-23 00:15:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure strn_len [2022-07-23 00:15:01,327 INFO L138 BoogieDeclarations]: Found implementation of procedure strn_len [2022-07-23 00:15:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-07-23 00:15:01,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:15:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:15:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-23 00:15:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-23 00:15:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-23 00:15:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-23 00:15:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-23 00:15:01,328 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-23 00:15:01,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 00:15:01,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 00:15:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:15:01,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:15:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-07-23 00:15:01,329 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-07-23 00:15:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_thread_write [2022-07-23 00:15:01,329 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_thread_write [2022-07-23 00:15:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-23 00:15:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 00:15:01,330 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 00:15:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:15:01,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:15:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:15:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:15:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:15:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:15:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure count_trail_chars [2022-07-23 00:15:01,331 INFO L138 BoogieDeclarations]: Found implementation of procedure count_trail_chars [2022-07-23 00:15:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net [2022-07-23 00:15:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net [2022-07-23 00:15:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:15:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 00:15:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 00:15:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2022-07-23 00:15:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2022-07-23 00:15:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-23 00:15:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-23 00:15:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:15:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-07-23 00:15:01,333 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-07-23 00:15:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-07-23 00:15:01,334 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-07-23 00:15:01,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 00:15:01,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 00:15:01,335 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-23 00:15:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-23 00:15:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:15:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:15:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2022-07-23 00:15:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2022-07-23 00:15:01,336 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-23 00:15:01,336 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-23 00:15:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure __cpu_to_node [2022-07-23 00:15:01,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __cpu_to_node [2022-07-23 00:15:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure hex32_arg [2022-07-23 00:15:01,337 INFO L138 BoogieDeclarations]: Found implementation of procedure hex32_arg [2022-07-23 00:15:01,337 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-23 00:15:01,337 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-23 00:15:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2022-07-23 00:15:01,338 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2022-07-23 00:15:01,338 INFO L130 BoogieDeclarations]: Found specification of procedure num_arg [2022-07-23 00:15:01,338 INFO L138 BoogieDeclarations]: Found implementation of procedure num_arg [2022-07-23 00:15:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-23 00:15:01,339 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-23 00:15:01,339 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-23 00:15:01,339 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-23 00:15:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_thread_open [2022-07-23 00:15:01,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_thread_open [2022-07-23 00:15:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-23 00:15:01,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-23 00:15:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-23 00:15:01,340 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-23 00:15:01,340 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-23 00:15:01,340 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-23 00:15:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 00:15:01,341 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-07-23 00:15:01,341 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-07-23 00:15:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 00:15:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-07-23 00:15:01,342 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-07-23 00:15:01,342 INFO L130 BoogieDeclarations]: Found specification of procedure pgctrl_write [2022-07-23 00:15:01,342 INFO L138 BoogieDeclarations]: Found implementation of procedure pgctrl_write [2022-07-23 00:15:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-07-23 00:15:01,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-07-23 00:15:01,343 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 00:15:01,343 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 00:15:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-23 00:15:01,344 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-23 00:15:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 00:15:01,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 00:15:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-07-23 00:15:01,344 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-07-23 00:15:01,344 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-23 00:15:01,345 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-23 00:15:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:15:01,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:15:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-07-23 00:15:01,345 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-07-23 00:15:01,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 00:15:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-07-23 00:15:01,346 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-07-23 00:15:01,346 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_clear_counters [2022-07-23 00:15:01,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_clear_counters [2022-07-23 00:15:01,347 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc_node [2022-07-23 00:15:01,347 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc_node [2022-07-23 00:15:01,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:15:01,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:15:01,350 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-07-23 00:15:01,351 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-07-23 00:15:01,351 INFO L130 BoogieDeclarations]: Found specification of procedure in6_pton [2022-07-23 00:15:01,352 INFO L138 BoogieDeclarations]: Found implementation of procedure in6_pton [2022-07-23 00:15:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2022-07-23 00:15:01,352 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2022-07-23 00:15:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-07-23 00:15:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-07-23 00:15:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:15:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-07-23 00:15:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-07-23 00:15:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-23 00:15:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-23 00:15:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-23 00:15:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-23 00:15:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:15:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:15:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-23 00:15:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-23 00:15:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure __pktgen_NN_threads [2022-07-23 00:15:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __pktgen_NN_threads [2022-07-23 00:15:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 00:15:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_wait_all_threads_run [2022-07-23 00:15:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_wait_all_threads_run [2022-07-23 00:15:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-07-23 00:15:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-07-23 00:15:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure in_aton [2022-07-23 00:15:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure in_aton [2022-07-23 00:15:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure mac_pton [2022-07-23 00:15:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_pton [2022-07-23 00:15:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_subsys [2022-07-23 00:15:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_subsys [2022-07-23 00:15:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2022-07-23 00:15:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2022-07-23 00:15:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure proc_remove [2022-07-23 00:15:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_remove [2022-07-23 00:15:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure free_SAs [2022-07-23 00:15:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure free_SAs [2022-07-23 00:15:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-23 00:15:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-23 00:15:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-23 00:15:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-23 00:15:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure pgctrl_open [2022-07-23 00:15:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure pgctrl_open [2022-07-23 00:15:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-23 00:15:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-23 00:15:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-07-23 00:15:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-07-23 00:15:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 00:15:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure pktgen_if_open [2022-07-23 00:15:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure pktgen_if_open [2022-07-23 00:15:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-23 00:15:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:15:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:15:01,364 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-23 00:15:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-23 00:15:02,106 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:15:02,109 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:15:19,131 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:15:22,455 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:15:22,480 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:15:22,480 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 00:15:22,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:15:22 BoogieIcfgContainer [2022-07-23 00:15:22,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:15:22,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:15:22,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:15:22,491 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:15:22,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:14:55" (1/3) ... [2022-07-23 00:15:22,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ccac7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:15:22, skipping insertion in model container [2022-07-23 00:15:22,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:15:00" (2/3) ... [2022-07-23 00:15:22,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ccac7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:15:22, skipping insertion in model container [2022-07-23 00:15:22,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:15:22" (3/3) ... [2022-07-23 00:15:22,494 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-net--core--pktgen.ko-entry_point.cil.out.i [2022-07-23 00:15:22,508 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:15:22,509 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:15:22,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:15:22,625 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@665de74b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1ca925c0 [2022-07-23 00:15:22,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:15:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 1542 states, 1153 states have (on average 1.448395490026019) internal successors, (1670), 1170 states have internal predecessors, (1670), 311 states have call successors, (311), 77 states have call predecessors, (311), 76 states have return successors, (304), 303 states have call predecessors, (304), 304 states have call successors, (304) [2022-07-23 00:15:22,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-07-23 00:15:22,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:15:22,684 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:15:22,685 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:15:22,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:15:22,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1040167170, now seen corresponding path program 1 times [2022-07-23 00:15:22,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:15:22,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68912255] [2022-07-23 00:15:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:15:22,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:15:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:15:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:15:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:15:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:15:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:15:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:15:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:15:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:15:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:15:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:15:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:15:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:15:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:15:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:15:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-23 00:15:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-23 00:15:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-23 00:15:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-23 00:15:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:15:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 00:15:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 00:15:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-23 00:15:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:15:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-23 00:15:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 00:15:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:15:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 00:15:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 00:15:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-23 00:15:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-23 00:15:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-23 00:15:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:23,960 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2022-07-23 00:15:23,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:15:23,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68912255] [2022-07-23 00:15:23,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68912255] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:15:23,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:15:23,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:15:23,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716795527] [2022-07-23 00:15:23,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:15:23,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:15:23,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:15:23,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:15:23,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:15:23,999 INFO L87 Difference]: Start difference. First operand has 1542 states, 1153 states have (on average 1.448395490026019) internal successors, (1670), 1170 states have internal predecessors, (1670), 311 states have call successors, (311), 77 states have call predecessors, (311), 76 states have return successors, (304), 303 states have call predecessors, (304), 304 states have call successors, (304) Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-23 00:16:08,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:10,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:12,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:14,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:16,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:18,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:20,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:22,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:24,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:33,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:35,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:37,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:39,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:41,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:43,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:45,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:47,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:49,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:53,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:53,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:16:53,881 INFO L93 Difference]: Finished difference Result 4499 states and 6755 transitions. [2022-07-23 00:16:53,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:16:53,884 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 213 [2022-07-23 00:16:53,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:16:53,929 INFO L225 Difference]: With dead ends: 4499 [2022-07-23 00:16:53,929 INFO L226 Difference]: Without dead ends: 2925 [2022-07-23 00:16:53,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:16:53,945 INFO L413 NwaCegarLoop]: 2398 mSDtfsCounter, 2750 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 3779 mSolverCounterSat, 828 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2973 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 4625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 828 IncrementalHoareTripleChecker+Valid, 3779 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:16:53,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2973 Valid, 6134 Invalid, 4625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [828 Valid, 3779 Invalid, 18 Unknown, 0 Unchecked, 89.4s Time] [2022-07-23 00:16:53,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2022-07-23 00:16:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2750. [2022-07-23 00:16:54,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2066 states have (on average 1.4351403678606003) internal successors, (2965), 2081 states have internal predecessors, (2965), 541 states have call successors, (541), 143 states have call predecessors, (541), 142 states have return successors, (539), 537 states have call predecessors, (539), 539 states have call successors, (539) [2022-07-23 00:16:54,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 4045 transitions. [2022-07-23 00:16:54,221 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 4045 transitions. Word has length 213 [2022-07-23 00:16:54,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:16:54,225 INFO L495 AbstractCegarLoop]: Abstraction has 2750 states and 4045 transitions. [2022-07-23 00:16:54,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-23 00:16:54,225 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 4045 transitions. [2022-07-23 00:16:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-07-23 00:16:54,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:16:54,238 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:16:54,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 00:16:54,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:16:54,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:16:54,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1442494954, now seen corresponding path program 1 times [2022-07-23 00:16:54,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:16:54,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339039465] [2022-07-23 00:16:54,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:16:54,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:16:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:16:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:16:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:16:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:16:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:16:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:16:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:16:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:16:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:16:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:16:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:16:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:16:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:16:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:16:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-23 00:16:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-23 00:16:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 00:16:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 00:16:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-23 00:16:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 00:16:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-23 00:16:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 00:16:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-23 00:16:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-23 00:16:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-23 00:16:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-23 00:16:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-23 00:16:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2022-07-23 00:16:54,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:16:54,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339039465] [2022-07-23 00:16:54,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339039465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:16:54,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:16:54,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:16:54,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255005845] [2022-07-23 00:16:54,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:16:54,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:16:54,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:16:54,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:16:54,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:16:54,963 INFO L87 Difference]: Start difference. First operand 2750 states and 4045 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-23 00:17:26,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:17:28,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:17:30,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:17:38,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:17:38,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:17:38,978 INFO L93 Difference]: Finished difference Result 8190 states and 12149 transitions. [2022-07-23 00:17:38,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:17:38,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 208 [2022-07-23 00:17:38,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:17:39,014 INFO L225 Difference]: With dead ends: 8190 [2022-07-23 00:17:39,014 INFO L226 Difference]: Without dead ends: 5480 [2022-07-23 00:17:39,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:17:39,029 INFO L413 NwaCegarLoop]: 2496 mSDtfsCounter, 4978 mSDsluCounter, 3281 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 2174 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5222 SdHoareTripleChecker+Valid, 5777 SdHoareTripleChecker+Invalid, 4798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2174 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.5s IncrementalHoareTripleChecker+Time [2022-07-23 00:17:39,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5222 Valid, 5777 Invalid, 4798 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2174 Valid, 2620 Invalid, 4 Unknown, 0 Unchecked, 43.5s Time] [2022-07-23 00:17:39,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5480 states. [2022-07-23 00:17:39,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5480 to 5172. [2022-07-23 00:17:39,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 3914 states have (on average 1.4491568727644353) internal successors, (5672), 3942 states have internal predecessors, (5672), 991 states have call successors, (991), 267 states have call predecessors, (991), 266 states have return successors, (989), 984 states have call predecessors, (989), 989 states have call successors, (989) [2022-07-23 00:17:39,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 7652 transitions. [2022-07-23 00:17:39,315 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 7652 transitions. Word has length 208 [2022-07-23 00:17:39,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:17:39,316 INFO L495 AbstractCegarLoop]: Abstraction has 5172 states and 7652 transitions. [2022-07-23 00:17:39,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-23 00:17:39,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 7652 transitions. [2022-07-23 00:17:39,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-23 00:17:39,342 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:17:39,342 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:17:39,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 00:17:39,345 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:17:39,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:17:39,345 INFO L85 PathProgramCache]: Analyzing trace with hash -514015625, now seen corresponding path program 1 times [2022-07-23 00:17:39,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:17:39,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106628965] [2022-07-23 00:17:39,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:17:39,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:17:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:17:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:17:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:17:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:17:39,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:17:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:17:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:17:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:17:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:17:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:17:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:17:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:17:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:17:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:17:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-23 00:17:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-23 00:17:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-23 00:17:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-23 00:17:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-23 00:17:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-23 00:17:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 00:17:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-23 00:17:39,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-23 00:17:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-23 00:17:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:39,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-23 00:17:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:17:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 00:17:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 00:17:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-23 00:17:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-23 00:17:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-23 00:17:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-23 00:17:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:17:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 00:17:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 00:17:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-23 00:17:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-23 00:17:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-23 00:17:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:17:40,115 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2022-07-23 00:17:40,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:17:40,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106628965] [2022-07-23 00:17:40,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106628965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:17:40,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:17:40,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:17:40,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604036837] [2022-07-23 00:17:40,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:17:40,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:17:40,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:17:40,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:17:40,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:17:40,120 INFO L87 Difference]: Start difference. First operand 5172 states and 7652 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (39), 5 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-23 00:18:11,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:18:13,513 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:18:15,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:18:44,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:18:46,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:18:48,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:18:54,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:18:54,108 INFO L93 Difference]: Finished difference Result 13616 states and 20258 transitions. [2022-07-23 00:18:54,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:18:54,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (39), 5 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 273 [2022-07-23 00:18:54,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:18:54,138 INFO L225 Difference]: With dead ends: 13616 [2022-07-23 00:18:54,138 INFO L226 Difference]: Without dead ends: 8484 [2022-07-23 00:18:54,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:18:54,155 INFO L413 NwaCegarLoop]: 3756 mSDtfsCounter, 3439 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 3229 mSolverCounterSat, 1159 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3679 SdHoareTripleChecker+Valid, 8201 SdHoareTripleChecker+Invalid, 4394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1159 IncrementalHoareTripleChecker+Valid, 3229 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.5s IncrementalHoareTripleChecker+Time [2022-07-23 00:18:54,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3679 Valid, 8201 Invalid, 4394 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1159 Valid, 3229 Invalid, 6 Unknown, 0 Unchecked, 73.5s Time] [2022-07-23 00:18:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8484 states. [2022-07-23 00:18:54,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8484 to 7924. [2022-07-23 00:18:54,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7924 states, 6022 states have (on average 1.452507472600465) internal successors, (8747), 6063 states have internal predecessors, (8747), 1495 states have call successors, (1495), 407 states have call predecessors, (1495), 406 states have return successors, (1493), 1486 states have call predecessors, (1493), 1493 states have call successors, (1493) [2022-07-23 00:18:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 11735 transitions. [2022-07-23 00:18:54,381 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 11735 transitions. Word has length 273 [2022-07-23 00:18:54,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:18:54,382 INFO L495 AbstractCegarLoop]: Abstraction has 7924 states and 11735 transitions. [2022-07-23 00:18:54,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (39), 5 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-23 00:18:54,382 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 11735 transitions. [2022-07-23 00:18:54,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-07-23 00:18:54,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:18:54,401 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:18:54,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 00:18:54,401 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:18:54,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:18:54,402 INFO L85 PathProgramCache]: Analyzing trace with hash 94582647, now seen corresponding path program 1 times [2022-07-23 00:18:54,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:18:54,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931555760] [2022-07-23 00:18:54,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:18:54,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:18:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:18:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:18:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:18:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:18:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:18:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:18:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:18:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:18:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:18:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:18:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:18:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:18:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:18:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:18:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-23 00:18:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-23 00:18:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-23 00:18:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-23 00:18:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-23 00:18:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-23 00:18:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-23 00:18:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-23 00:18:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-23 00:18:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-23 00:18:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-23 00:18:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:18:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 00:18:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 00:18:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-23 00:18:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-23 00:18:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-23 00:18:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-23 00:18:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:18:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-23 00:18:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 00:18:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-23 00:18:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-23 00:18:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-23 00:18:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:18:54,910 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2022-07-23 00:18:54,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:18:54,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931555760] [2022-07-23 00:18:54,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931555760] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:18:54,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:18:54,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:18:54,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331813230] [2022-07-23 00:18:54,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:18:54,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:18:54,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:18:54,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:18:54,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:18:54,923 INFO L87 Difference]: Start difference. First operand 7924 states and 11735 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (39), 6 states have call predecessors, (39), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35)