./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/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_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8 --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:58:26,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:58:26,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:58:26,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:58:26,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:58:26,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:58:26,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:58:26,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:58:26,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:58:26,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:58:26,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:58:26,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:58:26,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:58:26,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:58:26,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:58:26,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:58:26,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:58:26,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:58:26,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:58:26,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:58:26,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:58:26,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:58:26,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:58:26,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:58:26,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:58:26,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:58:26,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:58:26,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:58:26,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:58:26,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:58:26,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:58:26,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:58:26,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:58:26,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:58:26,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:58:26,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:58:26,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:58:26,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:58:26,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:58:26,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:58:26,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:58:26,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:58:26,273 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:58:26,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:58:26,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:58:26,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:58:26,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:58:26,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:58:26,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:58:26,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:58:26,279 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:58:26,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:58:26,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:58:26,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:58:26,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:58:26,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:58:26,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:58:26,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:58:26,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:58:26,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:58:26,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:58:26,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:58:26,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:58:26,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:58:26,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:58:26,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:58:26,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:58:26,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:58:26,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:58:26,287 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:58:26,293 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:58:26,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:58:26,294 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_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0271a94e9583537c53cc956cc665cf103175977e84d74a6d4144b032ac11f321 [2022-11-16 11:58:26,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:58:26,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:58:26,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:58:26,627 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:58:26,628 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:58:26,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/../../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 [2022-11-16 11:58:26,706 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/data/81668e126/2e80dc0a9cf04757a7294602572fc609/FLAG97cc50e92 [2022-11-16 11:58:27,744 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:58:27,744 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/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 [2022-11-16 11:58:27,809 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/data/81668e126/2e80dc0a9cf04757a7294602572fc609/FLAG97cc50e92 [2022-11-16 11:58:28,076 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/data/81668e126/2e80dc0a9cf04757a7294602572fc609 [2022-11-16 11:58:28,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:58:28,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:58:28,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:58:28,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:58:28,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:58:28,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:58:28" (1/1) ... [2022-11-16 11:58:28,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b464162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:28, skipping insertion in model container [2022-11-16 11:58:28,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:58:28" (1/1) ... [2022-11-16 11:58:28,104 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:58:28,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:58:28,911 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-11-16 11:58:28,911 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2022-11-16 11:58:29,626 WARN L229 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_e80fb373-d3ac-448f-8040-8f27a5a720d7/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] [2022-11-16 11:58:31,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:58:31,075 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:58:31,277 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6098] [2022-11-16 11:58:31,277 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6099-6100] [2022-11-16 11:58:31,304 WARN L229 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_e80fb373-d3ac-448f-8040-8f27a5a720d7/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] [2022-11-16 11:58:31,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:58:31,934 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:58:31,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31 WrapperNode [2022-11-16 11:58:31,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:58:31,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:58:31,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:58:31,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:58:31,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,067 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,311 INFO L138 Inliner]: procedures = 286, calls = 2912, calls flagged for inlining = 145, calls inlined = 128, statements flattened = 5531 [2022-11-16 11:58:32,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:58:32,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:58:32,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:58:32,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:58:32,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,570 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:58:32,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:58:32,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:58:32,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:58:32,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (1/1) ... [2022-11-16 11:58:32,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:58:32,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:58:32,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:58:32,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e80fb373-d3ac-448f-8040-8f27a5a720d7/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:58:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-16 11:58:32,703 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-16 11:58:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:58:32,703 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-16 11:58:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-16 11:58:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:58:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 11:58:32,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 11:58:32,704 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-16 11:58:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-16 11:58:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure send_to_lecd [2022-11-16 11:58:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure send_to_lecd [2022-11-16 11:58:32,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-16 11:58:32,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-16 11:58:32,706 INFO L130 BoogieDeclarations]: Found specification of procedure __lec_arp_check_expire [2022-11-16 11:58:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __lec_arp_check_expire [2022-11-16 11:58:32,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:58:32,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:58:32,706 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-16 11:58:32,706 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_stop [2022-11-16 11:58:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_stop [2022-11-16 11:58:32,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:58:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:58:32,707 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2022-11-16 11:58:32,707 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2022-11-16 11:58:32,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 11:58:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 11:58:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 11:58:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 11:58:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-16 11:58:32,708 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-16 11:58:32,708 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-16 11:58:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-16 11:58:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_find [2022-11-16 11:58:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_find [2022-11-16 11:58:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:58:32,709 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:58:32,709 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-11-16 11:58:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-11-16 11:58:32,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-11-16 11:58:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-11-16 11:58:32,710 INFO L130 BoogieDeclarations]: Found specification of procedure atm_may_send [2022-11-16 11:58:32,710 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_may_send [2022-11-16 11:58:32,711 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_open [2022-11-16 11:58:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_open [2022-11-16 11:58:32,711 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-16 11:58:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-16 11:58:32,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-16 11:58:32,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-16 11:58:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:58:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-16 11:58:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tx_timeout [2022-11-16 11:58:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tx_timeout [2022-11-16 11:58:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2022-11-16 11:58:32,712 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2022-11-16 11:58:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure lec_flush_complete [2022-11-16 11:58:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_flush_complete [2022-11-16 11:58:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:58:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-16 11:58:32,713 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-16 11:58:32,714 INFO L130 BoogieDeclarations]: Found specification of procedure lec_send [2022-11-16 11:58:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_send [2022-11-16 11:58:32,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-16 11:58:32,714 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 11:58:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 11:58:32,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:58:32,715 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-16 11:58:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-16 11:58:32,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:58:32,715 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-16 11:58:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-16 11:58:32,715 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 11:58:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 11:58:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 11:58:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 11:58:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure lec_tbl_walk [2022-11-16 11:58:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_tbl_walk [2022-11-16 11:58:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-16 11:58:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-16 11:58:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-16 11:58:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-16 11:58:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 11:58:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 11:58:32,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 11:58:32,717 INFO L130 BoogieDeclarations]: Found specification of procedure atm_force_charge [2022-11-16 11:58:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_force_charge [2022-11-16 11:58:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-16 11:58:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-16 11:58:32,718 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_check_expire [2022-11-16 11:58:32,718 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_check_expire [2022-11-16 11:58:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure atm_return [2022-11-16 11:58:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_return [2022-11-16 11:58:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 11:58:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 11:58:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 11:58:32,719 INFO L130 BoogieDeclarations]: Found specification of procedure dev_put [2022-11-16 11:58:32,719 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_put [2022-11-16 11:58:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure lec_get_idx [2022-11-16 11:58:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_get_idx [2022-11-16 11:58:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:58:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_add [2022-11-16 11:58:32,720 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_add [2022-11-16 11:58:32,720 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-16 11:58:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-16 11:58:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2022-11-16 11:58:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2022-11-16 11:58:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-16 11:58:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-16 11:58:32,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:58:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:58:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure lec_change_mtu [2022-11-16 11:58:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_change_mtu [2022-11-16 11:58:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-11-16 11:58:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-11-16 11:58:32,722 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-16 11:58:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-16 11:58:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-16 11:58:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-16 11:58:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2022-11-16 11:58:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2022-11-16 11:58:32,723 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 11:58:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 11:58:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure lec_seq_show [2022-11-16 11:58:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_seq_show [2022-11-16 11:58:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure vcc_release_async [2022-11-16 11:58:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure vcc_release_async [2022-11-16 11:58:32,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:58:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2022-11-16 11:58:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2022-11-16 11:58:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release_private [2022-11-16 11:58:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release_private [2022-11-16 11:58:32,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:58:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:58:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure lec_set_multicast_list [2022-11-16 11:58:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_set_multicast_list [2022-11-16 11:58:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_put [2022-11-16 11:58:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_put [2022-11-16 11:58:32,726 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_hold [2022-11-16 11:58:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_hold [2022-11-16 11:58:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:58:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-11-16 11:58:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-11-16 11:58:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:58:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:58:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 11:58:32,727 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-16 11:58:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-16 11:58:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:58:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:58:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_send [2022-11-16 11:58:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_send [2022-11-16 11:58:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-16 11:58:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-16 11:58:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2022-11-16 11:58:32,729 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2022-11-16 11:58:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure lec_atm_close [2022-11-16 11:58:32,729 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_atm_close [2022-11-16 11:58:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 11:58:32,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 11:58:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-16 11:58:32,730 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-16 11:58:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure make_entry [2022-11-16 11:58:32,730 INFO L138 BoogieDeclarations]: Found implementation of procedure make_entry [2022-11-16 11:58:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 11:58:32,730 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 11:58:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_remove [2022-11-16 11:58:32,731 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_remove [2022-11-16 11:58:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:58:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_update [2022-11-16 11:58:32,731 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_update [2022-11-16 11:58:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure lec_arp_clear_vccs [2022-11-16 11:58:32,731 INFO L138 BoogieDeclarations]: Found implementation of procedure lec_arp_clear_vccs [2022-11-16 11:58:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2022-11-16 11:58:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2022-11-16 11:58:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:58:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:58:33,706 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:58:33,710 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:58:33,973 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 11:58:42,233 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 11:58:45,162 INFO L769 $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; [2022-11-16 11:58:45,163 INFO L769 $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; [2022-11-16 11:58:52,570 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:58:52,589 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:58:52,589 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:58:52,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:58:52 BoogieIcfgContainer [2022-11-16 11:58:52,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:58:52,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:58:52,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:58:52,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:58:52,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:58:28" (1/3) ... [2022-11-16 11:58:52,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d020c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:58:52, skipping insertion in model container [2022-11-16 11:58:52,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:58:31" (2/3) ... [2022-11-16 11:58:52,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d020c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:58:52, skipping insertion in model container [2022-11-16 11:58:52,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:58:52" (3/3) ... [2022-11-16 11:58:52,604 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-net--atm--lec.ko-entry_point.cil.out.i [2022-11-16 11:58:52,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:58:52,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:58:52,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:58:52,718 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49863c4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:58:52,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:58:52,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 1665 states, 1225 states have (on average 1.3893877551020408) internal successors, (1702), 1265 states have internal predecessors, (1702), 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) [2022-11-16 11:58:52,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 11:58:52,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:58:52,749 INFO L195 NwaCegarLoop]: 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] [2022-11-16 11:58:52,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:58:52,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:58:52,756 INFO L85 PathProgramCache]: Analyzing trace with hash 797257804, now seen corresponding path program 1 times [2022-11-16 11:58:52,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:58:52,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752410093] [2022-11-16 11:58:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:58:52,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:58:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:58:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:58:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:58:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:58:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:58:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:58:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:58:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:58:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:58:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:58:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-16 11:58:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:58:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:58:53,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:58:53,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752410093] [2022-11-16 11:58:53,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752410093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:58:53,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:58:53,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:58:53,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097794600] [2022-11-16 11:58:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:58:53,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:58:53,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:58:53,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:58:53,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:58:53,975 INFO L87 Difference]: Start difference. First operand has 1665 states, 1225 states have (on average 1.3893877551020408) internal successors, (1702), 1265 states have internal predecessors, (1702), 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) [2022-11-16 11:58:56,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:59:10,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:59:10,587 INFO L93 Difference]: Finished difference Result 4984 states and 7472 transitions. [2022-11-16 11:59:10,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:59:10,591 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 [2022-11-16 11:59:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:59:10,641 INFO L225 Difference]: With dead ends: 4984 [2022-11-16 11:59:10,642 INFO L226 Difference]: Without dead ends: 3269 [2022-11-16 11:59:10,660 INFO L412 NwaCegarLoop]: 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 [2022-11-16 11:59:10,664 INFO L413 NwaCegarLoop]: 2356 mSDtfsCounter, 2769 mSDsluCounter, 2995 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 757 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3025 SdHoareTripleChecker+Valid, 5351 SdHoareTripleChecker+Invalid, 2641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:59:10,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3025 Valid, 5351 Invalid, 2641 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [757 Valid, 1883 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2022-11-16 11:59:10,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2022-11-16 11:59:10,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 3158. [2022-11-16 11:59:10,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 2338 states have (on average 1.3862275449101797) internal successors, (3241), 2396 states have internal predecessors, (3241), 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) [2022-11-16 11:59:11,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 4578 transitions. [2022-11-16 11:59:11,008 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 4578 transitions. Word has length 86 [2022-11-16 11:59:11,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:59:11,010 INFO L495 AbstractCegarLoop]: Abstraction has 3158 states and 4578 transitions. [2022-11-16 11:59:11,011 INFO L496 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) [2022-11-16 11:59:11,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 4578 transitions. [2022-11-16 11:59:11,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-16 11:59:11,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:59:11,029 INFO L195 NwaCegarLoop]: 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] [2022-11-16 11:59:11,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:59:11,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:59:11,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:11,035 INFO L85 PathProgramCache]: Analyzing trace with hash 423118170, now seen corresponding path program 1 times [2022-11-16 11:59:11,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:11,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29349371] [2022-11-16 11:59:11,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:11,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:59:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:59:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:59:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:59:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:59:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:59:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:59:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:59:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:59:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:59:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-16 11:59:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:12,163 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:59:12,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:12,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29349371] [2022-11-16 11:59:12,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29349371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:12,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:12,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:59:12,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087448028] [2022-11-16 11:59:12,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:12,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:59:12,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:12,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:59:12,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:59:12,168 INFO L87 Difference]: Start difference. First operand 3158 states and 4578 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) [2022-11-16 11:59:14,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:59:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:59:44,964 INFO L93 Difference]: Finished difference Result 16050 states and 24359 transitions. [2022-11-16 11:59:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 11:59:44,971 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 [2022-11-16 11:59:44,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:59:45,073 INFO L225 Difference]: With dead ends: 16050 [2022-11-16 11:59:45,073 INFO L226 Difference]: Without dead ends: 12916 [2022-11-16 11:59:45,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:59:45,107 INFO L413 NwaCegarLoop]: 3220 mSDtfsCounter, 8660 mSDsluCounter, 7766 mSDsCounter, 0 mSdLazyCounter, 5314 mSolverCounterSat, 1758 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9352 SdHoareTripleChecker+Valid, 10986 SdHoareTripleChecker+Invalid, 7073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1758 IncrementalHoareTripleChecker+Valid, 5314 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:59:45,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9352 Valid, 10986 Invalid, 7073 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1758 Valid, 5314 Invalid, 1 Unknown, 0 Unchecked, 31.6s Time] [2022-11-16 11:59:45,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12916 states. [2022-11-16 11:59:45,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12916 to 12510. [2022-11-16 11:59:46,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12510 states, 9263 states have (on average 1.3858361222066284) internal successors, (12837), 9497 states have internal predecessors, (12837), 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) [2022-11-16 11:59:46,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12510 states to 12510 states and 18564 transitions. [2022-11-16 11:59:46,087 INFO L78 Accepts]: Start accepts. Automaton has 12510 states and 18564 transitions. Word has length 98 [2022-11-16 11:59:46,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:59:46,090 INFO L495 AbstractCegarLoop]: Abstraction has 12510 states and 18564 transitions. [2022-11-16 11:59:46,092 INFO L496 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) [2022-11-16 11:59:46,092 INFO L276 IsEmpty]: Start isEmpty. Operand 12510 states and 18564 transitions. [2022-11-16 11:59:46,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-16 11:59:46,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:59:46,096 INFO L195 NwaCegarLoop]: 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] [2022-11-16 11:59:46,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:59:46,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:59:46,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:59:46,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1565685496, now seen corresponding path program 1 times [2022-11-16 11:59:46,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:59:46,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324161525] [2022-11-16 11:59:46,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:59:46,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:59:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 11:59:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 11:59:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 11:59:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:59:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 11:59:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 11:59:46,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 11:59:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 11:59:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 11:59:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 11:59:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 11:59:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:59:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 11:59:46,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:59:46,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324161525] [2022-11-16 11:59:46,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324161525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:59:46,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:59:46,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:59:46,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528316809] [2022-11-16 11:59:46,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:59:46,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:59:46,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:59:46,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:59:46,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:59:46,932 INFO L87 Difference]: Start difference. First operand 12510 states and 18564 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) [2022-11-16 11:59:49,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:59:57,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:00:01,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:00:07,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:00:28,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:00:28,955 INFO L93 Difference]: Finished difference Result 63928 states and 101715 transitions. [2022-11-16 12:00:28,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:00:28,956 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 [2022-11-16 12:00:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:00:29,382 INFO L225 Difference]: With dead ends: 63928 [2022-11-16 12:00:29,382 INFO L226 Difference]: Without dead ends: 51442 [2022-11-16 12:00:29,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:00:29,547 INFO L413 NwaCegarLoop]: 3064 mSDtfsCounter, 7131 mSDsluCounter, 10356 mSDsCounter, 0 mSdLazyCounter, 6909 mSolverCounterSat, 1063 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7824 SdHoareTripleChecker+Valid, 13420 SdHoareTripleChecker+Invalid, 7976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 6909 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:00:29,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7824 Valid, 13420 Invalid, 7976 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1063 Valid, 6909 Invalid, 4 Unknown, 0 Unchecked, 39.6s Time] [2022-11-16 12:00:29,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51442 states. [2022-11-16 12:00:32,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51442 to 49914. [2022-11-16 12:00:32,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49914 states, 36973 states have (on average 1.3847131690693208) internal successors, (51197), 37893 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) [2022-11-16 12:00:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49914 states to 49914 states and 77218 transitions. [2022-11-16 12:00:33,046 INFO L78 Accepts]: Start accepts. Automaton has 49914 states and 77218 transitions. Word has length 99 [2022-11-16 12:00:33,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:00:33,050 INFO L495 AbstractCegarLoop]: Abstraction has 49914 states and 77218 transitions. [2022-11-16 12:00:33,050 INFO L496 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) [2022-11-16 12:00:33,050 INFO L276 IsEmpty]: Start isEmpty. Operand 49914 states and 77218 transitions. [2022-11-16 12:00:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-16 12:00:33,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:00:33,059 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:00:33,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:00:33,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:00:33,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:00:33,060 INFO L85 PathProgramCache]: Analyzing trace with hash 651836002, now seen corresponding path program 1 times [2022-11-16 12:00:33,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:00:33,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569721815] [2022-11-16 12:00:33,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:00:33,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:00:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:00:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:00:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:00:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:00:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:00:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:00:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:00:34,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:00:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:00:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 12:00:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-16 12:00:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:00:34,224 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 12:00:34,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:00:34,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569721815] [2022-11-16 12:00:34,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569721815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:00:34,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:00:34,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:00:34,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045508431] [2022-11-16 12:00:34,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:00:34,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:00:34,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:00:34,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:00:34,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:00:34,229 INFO L87 Difference]: Start difference. First operand 49914 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) [2022-11-16 12:00:37,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:01:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:01:13,004 INFO L93 Difference]: Finished difference Result 255076 states and 448227 transitions. [2022-11-16 12:01:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:01:13,006 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 [2022-11-16 12:01:13,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:01:15,220 INFO L225 Difference]: With dead ends: 255076 [2022-11-16 12:01:15,220 INFO L226 Difference]: Without dead ends: 205186 [2022-11-16 12:01:15,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:01:15,855 INFO L413 NwaCegarLoop]: 3202 mSDtfsCounter, 8658 mSDsluCounter, 7557 mSDsCounter, 0 mSdLazyCounter, 5264 mSolverCounterSat, 1805 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9354 SdHoareTripleChecker+Valid, 10759 SdHoareTripleChecker+Invalid, 7070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1805 IncrementalHoareTripleChecker+Valid, 5264 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:01:15,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9354 Valid, 10759 Invalid, 7070 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1805 Valid, 5264 Invalid, 1 Unknown, 0 Unchecked, 29.7s Time] [2022-11-16 12:01:16,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205186 states. [2022-11-16 12:01:27,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205186 to 199094. [2022-11-16 12:01:27,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199094 states, 147569 states have (on average 1.38303437713883) internal successors, (204093), 151065 states have internal predecessors, (204093), 41771 states have call successors, (41771), 9506 states have call predecessors, (41771), 9753 states have return successors, (89396), 40826 states have call predecessors, (89396), 41770 states have call successors, (89396) [2022-11-16 12:01:30,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199094 states to 199094 states and 335260 transitions. [2022-11-16 12:01:30,581 INFO L78 Accepts]: Start accepts. Automaton has 199094 states and 335260 transitions. Word has length 96 [2022-11-16 12:01:30,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:01:30,582 INFO L495 AbstractCegarLoop]: Abstraction has 199094 states and 335260 transitions. [2022-11-16 12:01:30,582 INFO L496 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) [2022-11-16 12:01:30,582 INFO L276 IsEmpty]: Start isEmpty. Operand 199094 states and 335260 transitions. [2022-11-16 12:01:30,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 12:01:30,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:01:30,587 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:01:30,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:01:30,588 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:01:30,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:01:30,588 INFO L85 PathProgramCache]: Analyzing trace with hash 722048128, now seen corresponding path program 1 times [2022-11-16 12:01:30,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:01:30,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329587472] [2022-11-16 12:01:30,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:01:30,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:01:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:01:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:01:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:01:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:01:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 12:01:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 12:01:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-16 12:01:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:01:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:01:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 12:01:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 12:01:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:01:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-11-16 12:01:31,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:01:31,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329587472] [2022-11-16 12:01:31,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329587472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:01:31,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:01:31,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:01:31,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742042638] [2022-11-16 12:01:31,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:01:31,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:01:31,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:01:31,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:01:31,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:01:31,342 INFO L87 Difference]: Start difference. First operand 199094 states and 335260 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) [2022-11-16 12:01:34,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:01:37,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []