./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa --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 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:52:55,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:52:55,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:52:55,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:52:55,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:52:55,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:52:55,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:52:55,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:52:55,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:52:55,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:52:55,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:52:55,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:52:55,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:52:55,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:52:55,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:52:55,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:52:55,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:52:55,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:52:55,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:52:55,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:52:55,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:52:55,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:52:55,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:52:55,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:52:55,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:52:55,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:52:55,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:52:55,926 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:52:55,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:52:55,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:52:55,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:52:55,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:52:55,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:52:55,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:52:55,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:52:55,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:52:55,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:52:55,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:52:55,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:52:55,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:52:55,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:52:55,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 18:52:55,963 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:52:55,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:52:55,964 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:52:55,964 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:52:55,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:52:55,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:52:55,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:52:55,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:52:55,965 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:52:55,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:52:55,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:52:55,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:52:55,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:52:55,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:52:55,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:52:55,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:52:55,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:52:55,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:52:55,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:52:55,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:52:55,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:52:55,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:52:55,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:52:55,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:52:55,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:52:55,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:52:55,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:52:55,972 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:52:55,972 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:52:55,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:52:55,973 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:52:55,973 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2021-12-06 18:52:56,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:52:56,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:52:56,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:52:56,173 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:52:56,173 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:52:56,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-12-06 18:52:56,220 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/data/18d7183dc/ce0b74b85e554bf6a48aff672acf1070/FLAG89e7d3606 [2021-12-06 18:52:56,846 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:52:56,846 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-12-06 18:52:56,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/data/18d7183dc/ce0b74b85e554bf6a48aff672acf1070/FLAG89e7d3606 [2021-12-06 18:52:57,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/data/18d7183dc/ce0b74b85e554bf6a48aff672acf1070 [2021-12-06 18:52:57,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:52:57,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:52:57,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:52:57,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:52:57,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:52:57,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:52:57" (1/1) ... [2021-12-06 18:52:57,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e904c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:57, skipping insertion in model container [2021-12-06 18:52:57,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:52:57" (1/1) ... [2021-12-06 18:52:57,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:52:57,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:52:57,661 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-12-06 18:52:57,662 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-12-06 18:52:58,136 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-12-06 18:52:58,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:52:59,003 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:52:59,092 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2021-12-06 18:52:59,093 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2021-12-06 18:52:59,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i[187542,187555] [2021-12-06 18:52:59,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:52:59,402 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:52:59,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59 WrapperNode [2021-12-06 18:52:59,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:52:59,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:52:59,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:52:59,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:52:59,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (1/1) ... [2021-12-06 18:52:59,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (1/1) ... [2021-12-06 18:52:59,639 INFO L137 Inliner]: procedures = 286, calls = 2896, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5519 [2021-12-06 18:52:59,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:52:59,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:52:59,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:52:59,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:52:59,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (1/1) ... [2021-12-06 18:52:59,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (1/1) ... [2021-12-06 18:52:59,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (1/1) ... [2021-12-06 18:52:59,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (1/1) ... [2021-12-06 18:52:59,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (1/1) ... [2021-12-06 18:52:59,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (1/1) ... [2021-12-06 18:52:59,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (1/1) ... [2021-12-06 18:52:59,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:52:59,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:52:59,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:52:59,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:52:59,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (1/1) ... [2021-12-06 18:52:59,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:52:59,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:52:59,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:52:59,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3989aaba-a980-4d11-a11c-480651de5383/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:52:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-12-06 18:52:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-12-06 18:52:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 18:52:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-06 18:52:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-06 18:52:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 18:52:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 18:52:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 18:52:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-06 18:52:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-06 18:52:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2021-12-06 18:52:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2021-12-06 18:52:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-06 18:52:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-06 18:52:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2021-12-06 18:52:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2021-12-06 18:52:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 18:52:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 18:52:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-06 18:52:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2021-12-06 18:52:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2021-12-06 18:52:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 18:52:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 18:52:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2021-12-06 18:52:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2021-12-06 18:52:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 18:52:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 18:52:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 18:52:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 18:52:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-06 18:52:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-06 18:52:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-06 18:52:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-06 18:52:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2021-12-06 18:52:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2021-12-06 18:52:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 18:52:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 18:52:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2021-12-06 18:52:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2021-12-06 18:52:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-06 18:52:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-06 18:52:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2021-12-06 18:52:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2021-12-06 18:52:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2021-12-06 18:52:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2021-12-06 18:52:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-06 18:52:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-06 18:52:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-06 18:52:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-06 18:52:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:52:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-06 18:52:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2021-12-06 18:52:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2021-12-06 18:52:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2021-12-06 18:52:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2021-12-06 18:52:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2021-12-06 18:52:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2021-12-06 18:52:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 18:52:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-06 18:52:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-06 18:52:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2021-12-06 18:52:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2021-12-06 18:52:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-06 18:52:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 18:52:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 18:52:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:52:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-12-06 18:52:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-12-06 18:52:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 18:52:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-06 18:52:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-06 18:52:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 18:52:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 18:52:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-06 18:52:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-06 18:52:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2021-12-06 18:52:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2021-12-06 18:52:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-06 18:52:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-06 18:52:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-06 18:52:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-06 18:52:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 18:52:59,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 18:52:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 18:52:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2021-12-06 18:52:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2021-12-06 18:52:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-06 18:52:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-06 18:52:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2021-12-06 18:52:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2021-12-06 18:52:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2021-12-06 18:52:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2021-12-06 18:52:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 18:52:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 18:52:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 18:52:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2021-12-06 18:52:59,881 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2021-12-06 18:52:59,881 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2021-12-06 18:52:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2021-12-06 18:52:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:52:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2021-12-06 18:52:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2021-12-06 18:52:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-06 18:52:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-06 18:52:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2021-12-06 18:52:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2021-12-06 18:52:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-06 18:52:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-06 18:52:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 18:52:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 18:52:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2021-12-06 18:52:59,882 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2021-12-06 18:52:59,882 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2021-12-06 18:52:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2021-12-06 18:52:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-06 18:52:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-06 18:52:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-06 18:52:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-06 18:52:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-06 18:52:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-06 18:52:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 18:52:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 18:52:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2021-12-06 18:52:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2021-12-06 18:52:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2021-12-06 18:52:59,883 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2021-12-06 18:52:59,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:52:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2021-12-06 18:52:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2021-12-06 18:52:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2021-12-06 18:52:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2021-12-06 18:52:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 18:52:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 18:52:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2021-12-06 18:52:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2021-12-06 18:52:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2021-12-06 18:52:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2021-12-06 18:52:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2021-12-06 18:52:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2021-12-06 18:52:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 18:52:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-06 18:52:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-06 18:52:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:52:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 18:52:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 18:52:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-12-06 18:52:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-12-06 18:52:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 18:52:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 18:52:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2021-12-06 18:52:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2021-12-06 18:52:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-06 18:52:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-06 18:52:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-12-06 18:52:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-12-06 18:52:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2021-12-06 18:52:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2021-12-06 18:52:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 18:52:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 18:52:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-12-06 18:52:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-12-06 18:52:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2021-12-06 18:52:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2021-12-06 18:52:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 18:52:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 18:52:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2021-12-06 18:52:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2021-12-06 18:52:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:52:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2021-12-06 18:52:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2021-12-06 18:52:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2021-12-06 18:52:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2021-12-06 18:52:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2021-12-06 18:52:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2021-12-06 18:52:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:52:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:53:00,346 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:53:00,349 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:53:00,500 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 18:53:06,634 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 18:53:08,409 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616);lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := 0, 0;lec_addr_delete_~entry~10#1.base, lec_addr_delete_~entry~10#1.offset := lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset; [2021-12-06 18:53:08,410 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 != (lec_addr_delete_~____ptr___0~4#1.base + lec_addr_delete_~____ptr___0~4#1.offset) % 18446744073709551616;lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset := lec_addr_delete_~____ptr___0~4#1.base, lec_addr_delete_~____ptr___0~4#1.offset;lec_addr_delete_~tmp___2~14#1.base, lec_addr_delete_~tmp___2~14#1.offset := lec_addr_delete_~__mptr___0~5#1.base, lec_addr_delete_~__mptr___0~5#1.offset; [2021-12-06 18:53:12,616 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:53:12,634 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:53:12,634 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:53:12,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:53:12 BoogieIcfgContainer [2021-12-06 18:53:12,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:53:12,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:53:12,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:53:12,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:53:12,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:52:57" (1/3) ... [2021-12-06 18:53:12,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3739c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:53:12, skipping insertion in model container [2021-12-06 18:53:12,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:52:59" (2/3) ... [2021-12-06 18:53:12,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3739c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:53:12, skipping insertion in model container [2021-12-06 18:53:12,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:53:12" (3/3) ... [2021-12-06 18:53:12,646 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2021-12-06 18:53:12,651 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:53:12,651 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:53:12,707 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:53:12,713 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:53:12,713 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 18:53:12,758 INFO L276 IsEmpty]: Start isEmpty. Operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) [2021-12-06 18:53:12,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-06 18:53:12,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:53:12,770 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:53:12,770 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:53:12,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:53:12,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1135839636, now seen corresponding path program 1 times [2021-12-06 18:53:12,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:53:12,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607945981] [2021-12-06 18:53:12,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:53:12,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:53:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:53:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:53:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:53:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 18:53:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 18:53:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:53:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:53:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 18:53:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 18:53:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 18:53:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:53:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:13,384 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-06 18:53:13,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:53:13,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607945981] [2021-12-06 18:53:13,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607945981] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:53:13,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:53:13,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:53:13,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49757849] [2021-12-06 18:53:13,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:53:13,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:53:13,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:53:13,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:53:13,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:53:13,419 INFO L87 Difference]: Start difference. First operand has 1666 states, 1226 states have (on average 1.3890701468189233) internal successors, (1703), 1266 states have internal predecessors, (1703), 361 states have call successors, (361), 78 states have call predecessors, (361), 77 states have return successors, (352), 342 states have call predecessors, (352), 352 states have call successors, (352) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:53:15,794 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 [] [2021-12-06 18:53:22,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:53:22,809 INFO L93 Difference]: Finished difference Result 4987 states and 7475 transitions. [2021-12-06 18:53:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:53:22,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2021-12-06 18:53:22,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:53:22,848 INFO L225 Difference]: With dead ends: 4987 [2021-12-06 18:53:22,849 INFO L226 Difference]: Without dead ends: 3271 [2021-12-06 18:53:22,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:53:22,865 INFO L933 BasicCegarLoop]: 2669 mSDtfsCounter, 2717 mSDsluCounter, 3244 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 805 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2972 SdHoareTripleChecker+Valid, 5913 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 805 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:53:22,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2972 Valid, 5913 Invalid, 2113 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [805 Valid, 1307 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-12-06 18:53:22,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3271 states. [2021-12-06 18:53:23,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3271 to 3160. [2021-12-06 18:53:23,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2340 states have (on average 1.3858974358974359) internal successors, (3243), 2398 states have internal predecessors, (3243), 669 states have call successors, (669), 151 states have call predecessors, (669), 150 states have return successors, (668), 648 states have call predecessors, (668), 668 states have call successors, (668) [2021-12-06 18:53:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4580 transitions. [2021-12-06 18:53:23,078 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4580 transitions. Word has length 86 [2021-12-06 18:53:23,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:53:23,079 INFO L470 AbstractCegarLoop]: Abstraction has 3160 states and 4580 transitions. [2021-12-06 18:53:23,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:53:23,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4580 transitions. [2021-12-06 18:53:23,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 18:53:23,086 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:53:23,086 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:53:23,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:53:23,086 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:53:23,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:53:23,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1699374466, now seen corresponding path program 1 times [2021-12-06 18:53:23,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:53:23,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285025120] [2021-12-06 18:53:23,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:53:23,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:53:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:53:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:53:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:53:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 18:53:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 18:53:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:53:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:53:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 18:53:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 18:53:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 18:53:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 18:53:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:23,521 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-06 18:53:23,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:53:23,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285025120] [2021-12-06 18:53:23,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285025120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:53:23,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:53:23,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:53:23,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935845769] [2021-12-06 18:53:23,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:53:23,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:53:23,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:53:23,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:53:23,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:53:23,524 INFO L87 Difference]: Start difference. First operand 3160 states and 4580 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:53:26,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:53:44,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:53:44,630 INFO L93 Difference]: Finished difference Result 16064 states and 24377 transitions. [2021-12-06 18:53:44,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:53:44,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2021-12-06 18:53:44,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:53:44,712 INFO L225 Difference]: With dead ends: 16064 [2021-12-06 18:53:44,712 INFO L226 Difference]: Without dead ends: 12928 [2021-12-06 18:53:44,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:53:44,733 INFO L933 BasicCegarLoop]: 3534 mSDtfsCounter, 10244 mSDsluCounter, 6200 mSDsCounter, 0 mSdLazyCounter, 4115 mSolverCounterSat, 3206 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10938 SdHoareTripleChecker+Valid, 9734 SdHoareTripleChecker+Invalid, 7322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3206 IncrementalHoareTripleChecker+Valid, 4115 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:53:44,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10938 Valid, 9734 Invalid, 7322 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3206 Valid, 4115 Invalid, 1 Unknown, 0 Unchecked, 20.3s Time] [2021-12-06 18:53:44,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12928 states. [2021-12-06 18:53:45,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12928 to 12522. [2021-12-06 18:53:45,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12522 states, 9275 states have (on average 1.3857681940700808) internal successors, (12853), 9509 states have internal predecessors, (12853), 2637 states have call successors, (2637), 598 states have call predecessors, (2637), 609 states have return successors, (3090), 2566 states have call predecessors, (3090), 2636 states have call successors, (3090) [2021-12-06 18:53:45,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12522 states to 12522 states and 18580 transitions. [2021-12-06 18:53:45,245 INFO L78 Accepts]: Start accepts. Automaton has 12522 states and 18580 transitions. Word has length 99 [2021-12-06 18:53:45,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:53:45,245 INFO L470 AbstractCegarLoop]: Abstraction has 12522 states and 18580 transitions. [2021-12-06 18:53:45,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:53:45,245 INFO L276 IsEmpty]: Start isEmpty. Operand 12522 states and 18580 transitions. [2021-12-06 18:53:45,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-06 18:53:45,249 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:53:45,249 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:53:45,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:53:45,250 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:53:45,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:53:45,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1667649466, now seen corresponding path program 1 times [2021-12-06 18:53:45,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:53:45,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363320131] [2021-12-06 18:53:45,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:53:45,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:53:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:53:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:53:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:53:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 18:53:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 18:53:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:53:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:53:45,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 18:53:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 18:53:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 18:53:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:53:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:53:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-06 18:53:45,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:53:45,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363320131] [2021-12-06 18:53:45,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363320131] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:53:45,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:53:45,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:53:45,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549932227] [2021-12-06 18:53:45,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:53:45,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:53:45,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:53:45,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:53:45,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:53:45,592 INFO L87 Difference]: Start difference. First operand 12522 states and 18580 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:53:47,968 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 [] [2021-12-06 18:54:13,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:54:13,319 INFO L93 Difference]: Finished difference Result 63960 states and 101911 transitions. [2021-12-06 18:54:13,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:54:13,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2021-12-06 18:54:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:54:13,561 INFO L225 Difference]: With dead ends: 63960 [2021-12-06 18:54:13,561 INFO L226 Difference]: Without dead ends: 51462 [2021-12-06 18:54:13,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:54:13,632 INFO L933 BasicCegarLoop]: 3487 mSDtfsCounter, 7019 mSDsluCounter, 11172 mSDsCounter, 0 mSdLazyCounter, 5808 mSolverCounterSat, 1152 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7718 SdHoareTripleChecker+Valid, 14659 SdHoareTripleChecker+Invalid, 6961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1152 IncrementalHoareTripleChecker+Valid, 5808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:54:13,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7718 Valid, 14659 Invalid, 6961 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1152 Valid, 5808 Invalid, 1 Unknown, 0 Unchecked, 26.2s Time] [2021-12-06 18:54:13,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51462 states. [2021-12-06 18:54:14,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51462 to 49930. [2021-12-06 18:54:15,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49930 states, 36989 states have (on average 1.3841141961123578) internal successors, (51197), 37909 states have internal predecessors, (51197), 10491 states have call successors, (10491), 2386 states have call predecessors, (10491), 2449 states have return successors, (15530), 10242 states have call predecessors, (15530), 10490 states have call successors, (15530) [2021-12-06 18:54:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49930 states to 49930 states and 77218 transitions. [2021-12-06 18:54:15,236 INFO L78 Accepts]: Start accepts. Automaton has 49930 states and 77218 transitions. Word has length 97 [2021-12-06 18:54:15,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:54:15,237 INFO L470 AbstractCegarLoop]: Abstraction has 49930 states and 77218 transitions. [2021-12-06 18:54:15,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:54:15,237 INFO L276 IsEmpty]: Start isEmpty. Operand 49930 states and 77218 transitions. [2021-12-06 18:54:15,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:54:15,240 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:54:15,240 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:54:15,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:54:15,240 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:54:15,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:54:15,241 INFO L85 PathProgramCache]: Analyzing trace with hash 956034598, now seen corresponding path program 1 times [2021-12-06 18:54:15,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:54:15,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879793099] [2021-12-06 18:54:15,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:54:15,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:54:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:54:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:54:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:54:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 18:54:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 18:54:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:54:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:54:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 18:54:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 18:54:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 18:54:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-06 18:54:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:15,579 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-06 18:54:15,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:54:15,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879793099] [2021-12-06 18:54:15,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879793099] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:54:15,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:54:15,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:54:15,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882130266] [2021-12-06 18:54:15,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:54:15,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:54:15,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:54:15,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:54:15,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:54:15,580 INFO L87 Difference]: Start difference. First operand 49930 states and 77218 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:54:17,983 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 [] [2021-12-06 18:54:48,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:54:48,227 INFO L93 Difference]: Finished difference Result 255156 states and 447987 transitions. [2021-12-06 18:54:48,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:54:48,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2021-12-06 18:54:48,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:54:49,310 INFO L225 Difference]: With dead ends: 255156 [2021-12-06 18:54:49,310 INFO L226 Difference]: Without dead ends: 205250 [2021-12-06 18:54:49,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:54:49,677 INFO L933 BasicCegarLoop]: 3548 mSDtfsCounter, 7040 mSDsluCounter, 10848 mSDsCounter, 0 mSdLazyCounter, 5730 mSolverCounterSat, 1193 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7736 SdHoareTripleChecker+Valid, 14396 SdHoareTripleChecker+Invalid, 6924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1193 IncrementalHoareTripleChecker+Valid, 5730 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:54:49,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7736 Valid, 14396 Invalid, 6924 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1193 Valid, 5730 Invalid, 1 Unknown, 0 Unchecked, 27.4s Time] [2021-12-06 18:54:49,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205250 states. [2021-12-06 18:54:55,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205250 to 199158. [2021-12-06 18:54:56,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199158 states, 147649 states have (on average 1.3826101091101193) internal successors, (204141), 151129 states have internal predecessors, (204141), 41771 states have call successors, (41771), 9506 states have call predecessors, (41771), 9737 states have return successors, (89364), 40794 states have call predecessors, (89364), 41770 states have call successors, (89364) [2021-12-06 18:54:57,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199158 states to 199158 states and 335276 transitions. [2021-12-06 18:54:57,558 INFO L78 Accepts]: Start accepts. Automaton has 199158 states and 335276 transitions. Word has length 96 [2021-12-06 18:54:57,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:54:57,559 INFO L470 AbstractCegarLoop]: Abstraction has 199158 states and 335276 transitions. [2021-12-06 18:54:57,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:54:57,559 INFO L276 IsEmpty]: Start isEmpty. Operand 199158 states and 335276 transitions. [2021-12-06 18:54:57,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:54:57,561 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:54:57,561 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:54:57,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:54:57,561 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:54:57,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:54:57,561 INFO L85 PathProgramCache]: Analyzing trace with hash 421984606, now seen corresponding path program 1 times [2021-12-06 18:54:57,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:54:57,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343751679] [2021-12-06 18:54:57,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:54:57,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:54:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:54:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:54:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:54:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 18:54:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 18:54:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:54:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:54:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 18:54:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 18:54:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 18:54:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 18:54:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:54:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-06 18:54:57,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:54:57,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343751679] [2021-12-06 18:54:57,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343751679] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:54:57,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:54:57,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:54:57,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220213656] [2021-12-06 18:54:57,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:54:57,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:54:57,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:54:57,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:54:57,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:54:57,874 INFO L87 Difference]: Start difference. First operand 199158 states and 335276 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:55:00,327 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 [] [2021-12-06 18:55:46,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:55:46,378 INFO L93 Difference]: Finished difference Result 1017250 states and 2150527 transitions. [2021-12-06 18:55:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:55:46,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2021-12-06 18:55:46,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:55:54,614 INFO L225 Difference]: With dead ends: 1017250 [2021-12-06 18:55:54,614 INFO L226 Difference]: Without dead ends: 818116 [2021-12-06 18:55:58,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:55:58,079 INFO L933 BasicCegarLoop]: 3343 mSDtfsCounter, 10522 mSDsluCounter, 6076 mSDsCounter, 0 mSdLazyCounter, 4069 mSolverCounterSat, 3352 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11227 SdHoareTripleChecker+Valid, 9419 SdHoareTripleChecker+Invalid, 7422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3352 IncrementalHoareTripleChecker+Valid, 4069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:55:58,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11227 Valid, 9419 Invalid, 7422 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3352 Valid, 4069 Invalid, 1 Unknown, 0 Unchecked, 22.1s Time] [2021-12-06 18:55:58,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818116 states. [2021-12-06 18:56:34,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818116 to 794444. [2021-12-06 18:56:35,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794444 states, 589299 states have (on average 1.380954320302597) internal successors, (813795), 602663 states have internal predecessors, (813795), 166181 states have call successors, (166181), 37856 states have call predecessors, (166181), 38963 states have return successors, (598284), 162970 states have call predecessors, (598284), 166180 states have call successors, (598284) [2021-12-06 18:56:44,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794444 states to 794444 states and 1578260 transitions. [2021-12-06 18:56:44,894 INFO L78 Accepts]: Start accepts. Automaton has 794444 states and 1578260 transitions. Word has length 98 [2021-12-06 18:56:44,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:56:44,895 INFO L470 AbstractCegarLoop]: Abstraction has 794444 states and 1578260 transitions. [2021-12-06 18:56:44,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:56:44,895 INFO L276 IsEmpty]: Start isEmpty. Operand 794444 states and 1578260 transitions. [2021-12-06 18:56:44,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:56:44,898 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:56:44,898 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:56:44,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:56:44,898 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:56:44,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:56:44,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1374110044, now seen corresponding path program 1 times [2021-12-06 18:56:44,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:56:44,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592692381] [2021-12-06 18:56:44,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:56:44,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:56:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:56:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 18:56:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 18:56:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 18:56:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 18:56:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:56:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:56:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 18:56:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 18:56:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 18:56:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-06 18:56:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:56:45,142 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-06 18:56:45,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:56:45,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592692381] [2021-12-06 18:56:45,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592692381] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:56:45,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:56:45,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:56:45,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609404990] [2021-12-06 18:56:45,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:56:45,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:56:45,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:56:45,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:56:45,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:56:45,143 INFO L87 Difference]: Start difference. First operand 794444 states and 1578260 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-06 18:56:47,394 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 []