./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 718a95fd2d27cb38002861c3cfa5a256ea936153fc96f7220d4978ac34f5d164 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:10:39,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:10:39,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:10:39,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:10:39,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:10:39,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:10:39,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:10:39,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:10:39,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:10:39,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:10:39,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:10:39,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:10:39,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:10:39,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:10:39,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:10:39,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:10:39,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:10:39,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:10:39,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:10:39,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:10:39,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:10:39,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:10:39,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:10:39,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:10:39,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:10:39,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:10:39,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:10:39,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:10:39,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:10:39,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:10:39,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:10:39,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:10:39,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:10:39,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:10:39,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:10:39,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:10:39,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:10:39,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:10:39,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:10:39,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:10:39,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:10:39,353 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 22:10:39,372 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:10:39,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:10:39,372 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:10:39,372 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:10:39,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:10:39,373 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:10:39,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:10:39,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:10:39,374 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:10:39,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:10:39,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:10:39,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:10:39,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:10:39,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:10:39,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:10:39,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:10:39,375 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:10:39,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:10:39,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:10:39,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:10:39,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:10:39,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:10:39,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:10:39,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:10:39,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:10:39,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:10:39,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:10:39,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:10:39,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:10:39,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:10:39,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:10:39,381 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_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 718a95fd2d27cb38002861c3cfa5a256ea936153fc96f7220d4978ac34f5d164 [2021-12-06 22:10:39,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:10:39,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:10:39,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:10:39,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:10:39,594 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:10:39,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i [2021-12-06 22:10:39,640 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/data/9d90dba75/7b262b9886c54515bff0bfde9a22b600/FLAG9040d7994 [2021-12-06 22:10:40,399 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:10:40,400 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i [2021-12-06 22:10:40,452 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/data/9d90dba75/7b262b9886c54515bff0bfde9a22b600/FLAG9040d7994 [2021-12-06 22:10:40,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/data/9d90dba75/7b262b9886c54515bff0bfde9a22b600 [2021-12-06 22:10:40,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:10:40,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:10:40,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:10:40,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:10:40,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:10:40,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:10:40" (1/1) ... [2021-12-06 22:10:40,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550b74b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:40, skipping insertion in model container [2021-12-06 22:10:40,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:10:40" (1/1) ... [2021-12-06 22:10:40,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:10:40,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:10:41,183 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4843] [2021-12-06 22:10:41,183 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4844-4845] [2021-12-06 22:10:41,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i[139081,139094] [2021-12-06 22:10:43,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:10:43,755 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:10:43,811 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4843] [2021-12-06 22:10:43,811 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4844-4845] [2021-12-06 22:10:43,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i[139081,139094] [2021-12-06 22:10:44,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:10:44,561 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:10:44,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44 WrapperNode [2021-12-06 22:10:44,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:10:44,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:10:44,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:10:44,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:10:44,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (1/1) ... [2021-12-06 22:10:44,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (1/1) ... [2021-12-06 22:10:44,890 INFO L137 Inliner]: procedures = 453, calls = 6871, calls flagged for inlining = 212, calls inlined = 198, statements flattened = 12752 [2021-12-06 22:10:44,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:10:44,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:10:44,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:10:44,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:10:44,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (1/1) ... [2021-12-06 22:10:44,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (1/1) ... [2021-12-06 22:10:44,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (1/1) ... [2021-12-06 22:10:44,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (1/1) ... [2021-12-06 22:10:45,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (1/1) ... [2021-12-06 22:10:45,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (1/1) ... [2021-12-06 22:10:45,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (1/1) ... [2021-12-06 22:10:45,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:10:45,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:10:45,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:10:45,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:10:45,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (1/1) ... [2021-12-06 22:10:45,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:10:45,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:10:45,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:10:45,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6a993df-41bf-4fb2-81b7-9f067609da9b/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:10:45,438 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_poke_via_dsp [2021-12-06 22:10:45,438 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_poke_via_dsp [2021-12-06 22:10:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_read [2021-12-06 22:10:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_read [2021-12-06 22:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open_clfe [2021-12-06 22:10:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open_clfe [2021-12-06 22:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_src_task_scb [2021-12-06 22:10:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_src_task_scb [2021-12-06 22:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_hw_free [2021-12-06 22:10:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_hw_free [2021-12-06 22:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-06 22:10:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-06 22:10:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 22:10:45,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 22:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_hw_constraint_list [2021-12-06 22:10:45,469 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_hw_constraint_list [2021-12-06 22:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-06 22:10:45,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-06 22:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_scb_set_volume [2021-12-06 22:10:45,469 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_scb_set_volume [2021-12-06 22:10:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_pokeBA0 [2021-12-06 22:10:45,469 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_pokeBA0 [2021-12-06 22:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_close_iec958 [2021-12-06 22:10:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_close_iec958 [2021-12-06 22:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_close [2021-12-06 22:10:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_close [2021-12-06 22:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_set_ops [2021-12-06 22:10:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_set_ops [2021-12-06 22:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-06 22:10:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-06 22:10:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure dsp_load_parameter [2021-12-06 22:10:45,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dsp_load_parameter [2021-12-06 22:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_free_scb [2021-12-06 22:10:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_free_scb [2021-12-06 22:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_create_card_entry [2021-12-06 22:10:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_create_card_entry [2021-12-06 22:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_free [2021-12-06 22:10:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_free [2021-12-06 22:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 22:10:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 22:10:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_hw_params [2021-12-06 22:10:45,472 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_hw_params [2021-12-06 22:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_write [2021-12-06 22:10:45,472 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_write [2021-12-06 22:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 22:10:45,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 22:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_generic_scb [2021-12-06 22:10:45,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_generic_scb [2021-12-06 22:10:45,472 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 22:10:45,473 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 22:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_proc_free_scb_desc [2021-12-06 22:10:45,473 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_proc_free_scb_desc [2021-12-06 22:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure params_period_bytes [2021-12-06 22:10:45,473 INFO L138 BoogieDeclarations]: Found implementation of procedure params_period_bytes [2021-12-06 22:10:45,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 22:10:45,474 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_proc_register_scb_desc [2021-12-06 22:10:45,474 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_proc_register_scb_desc [2021-12-06 22:10:45,474 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_mix_only_scb [2021-12-06 22:10:45,474 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_mix_only_scb [2021-12-06 22:10:45,474 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_transfer [2021-12-06 22:10:45,474 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_transfer [2021-12-06 22:10:45,474 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_clear_BA1 [2021-12-06 22:10:45,474 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_clear_BA1 [2021-12-06 22:10:45,474 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-06 22:10:45,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-06 22:10:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_add [2021-12-06 22:10:45,475 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_add [2021-12-06 22:10:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dma_free_pages [2021-12-06 22:10:45,475 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dma_free_pages [2021-12-06 22:10:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 22:10:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_indirect_pointer [2021-12-06 22:10:45,475 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_indirect_pointer [2021-12-06 22:10:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_set_play_sample_rate [2021-12-06 22:10:45,476 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_set_play_sample_rate [2021-12-06 22:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 22:10:45,476 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 22:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_proc_start [2021-12-06 22:10:45,476 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_proc_start [2021-12-06 22:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-06 22:10:45,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-06 22:10:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_preallocate_pages_for_all [2021-12-06 22:10:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_preallocate_pages_for_all [2021-12-06 22:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_indirect_pointer [2021-12-06 22:10:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_indirect_pointer [2021-12-06 22:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_enable_spdif_out [2021-12-06 22:10:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_enable_spdif_out [2021-12-06 22:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-06 22:10:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-06 22:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_codec_write [2021-12-06 22:10:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_codec_write [2021-12-06 22:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 22:10:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 22:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_direct_pointer [2021-12-06 22:10:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_direct_pointer [2021-12-06 22:10:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_free_entry [2021-12-06 22:10:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_free_entry [2021-12-06 22:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_cs46xx_remove [2021-12-06 22:10:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_cs46xx_remove [2021-12-06 22:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_pcm_link [2021-12-06 22:10:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_pcm_link [2021-12-06 22:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure voyetra_setup_eapd_slot [2021-12-06 22:10:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure voyetra_setup_eapd_slot [2021-12-06 22:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 22:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-06 22:10:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-06 22:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 22:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_resume [2021-12-06 22:10:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_resume [2021-12-06 22:10:45,478 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_create_scb [2021-12-06 22:10:45,478 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_create_scb [2021-12-06 22:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_trigger [2021-12-06 22:10:45,479 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_trigger [2021-12-06 22:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_trigger [2021-12-06 22:10:45,479 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_trigger [2021-12-06 22:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure _cs46xx_playback_open_channel [2021-12-06 22:10:45,479 INFO L138 BoogieDeclarations]: Found implementation of procedure _cs46xx_playback_open_channel [2021-12-06 22:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 22:10:45,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 22:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-06 22:10:45,479 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-06 22:10:45,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 22:10:45,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 22:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_prepare [2021-12-06 22:10:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_prepare [2021-12-06 22:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_pcm_serial_input_scb [2021-12-06 22:10:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_pcm_serial_input_scb [2021-12-06 22:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure snd_power_change_state [2021-12-06 22:10:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_power_change_state [2021-12-06 22:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_src_unlink [2021-12-06 22:10:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_src_unlink [2021-12-06 22:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure clkrun_init [2021-12-06 22:10:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure clkrun_init [2021-12-06 22:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 22:10:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 22:10:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure bytes_to_frames [2021-12-06 22:10:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure bytes_to_frames [2021-12-06 22:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open_iec958 [2021-12-06 22:10:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open_iec958 [2021-12-06 22:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_peek [2021-12-06 22:10:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_peek [2021-12-06 22:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-06 22:10:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-06 22:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure add_symbol [2021-12-06 22:10:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure add_symbol [2021-12-06 22:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:10:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_input_open [2021-12-06 22:10:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_input_open [2021-12-06 22:10:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_hw_stop [2021-12-06 22:10:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_hw_stop [2021-12-06 22:10:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure hw_param_interval_c [2021-12-06 22:10:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_param_interval_c [2021-12-06 22:10:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_set_capture_sample_rate [2021-12-06 22:10:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_set_capture_sample_rate [2021-12-06 22:10:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_transmit [2021-12-06 22:10:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_transmit [2021-12-06 22:10:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-06 22:10:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-06 22:10:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 22:10:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 22:10:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_buffer_bytes [2021-12-06 22:10:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_buffer_bytes [2021-12-06 22:10:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_detect_codec [2021-12-06 22:10:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_detect_codec [2021-12-06 22:10:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 22:10:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_reset [2021-12-06 22:10:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_reset [2021-12-06 22:10:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 22:10:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 22:10:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 22:10:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_open [2021-12-06 22:10:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_open [2021-12-06 22:10:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_codec_out_scb [2021-12-06 22:10:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_codec_out_scb [2021-12-06 22:10:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_disable_spdif_out [2021-12-06 22:10:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_disable_spdif_out [2021-12-06 22:10:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_clear_sample_buffer [2021-12-06 22:10:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_clear_sample_buffer [2021-12-06 22:10:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_malloc_pages [2021-12-06 22:10:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_malloc_pages [2021-12-06 22:10:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_close [2021-12-06 22:10:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_close [2021-12-06 22:10:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure amp_voyetra [2021-12-06 22:10:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure amp_voyetra [2021-12-06 22:10:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure get_segment_desc [2021-12-06 22:10:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure get_segment_desc [2021-12-06 22:10:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 22:10:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 22:10:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 22:10:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 22:10:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_create_task_tree [2021-12-06 22:10:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_create_task_tree [2021-12-06 22:10:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_hw_free [2021-12-06 22:10:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_hw_free [2021-12-06 22:10:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 22:10:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 22:10:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-06 22:10:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-06 22:10:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 22:10:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 22:10:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure free_module_desc [2021-12-06 22:10:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure free_module_desc [2021-12-06 22:10:45,485 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_new [2021-12-06 22:10:45,486 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_new [2021-12-06 22:10:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_create_generic_scb [2021-12-06 22:10:45,486 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_create_generic_scb [2021-12-06 22:10:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-06 22:10:45,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-06 22:10:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_suspend [2021-12-06 22:10:45,486 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_suspend [2021-12-06 22:10:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:10:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure snd_dma_alloc_pages [2021-12-06 22:10:45,486 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_dma_alloc_pages [2021-12-06 22:10:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-06 22:10:45,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-06 22:10:45,486 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_prepare [2021-12-06 22:10:45,486 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_prepare [2021-12-06 22:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 22:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_destroy_pcm_channel [2021-12-06 22:10:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_destroy_pcm_channel [2021-12-06 22:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_input_trigger [2021-12-06 22:10:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_input_trigger [2021-12-06 22:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-06 22:10:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-06 22:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_reset [2021-12-06 22:10:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_reset [2021-12-06 22:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 22:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_output_close [2021-12-06 22:10:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_output_close [2021-12-06 22:10:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 22:10:45,487 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 22:10:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_resume [2021-12-06 22:10:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_resume [2021-12-06 22:10:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ac97_suspend [2021-12-06 22:10:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ac97_suspend [2021-12-06 22:10:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open_rear [2021-12-06 22:10:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open_rear [2021-12-06 22:10:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-06 22:10:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-06 22:10:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_ac97_write [2021-12-06 22:10:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_ac97_write [2021-12-06 22:10:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-06 22:10:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-06 22:10:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_enable_stream_irqs [2021-12-06 22:10:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_enable_stream_irqs [2021-12-06 22:10:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-06 22:10:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-06 22:10:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_codec_read [2021-12-06 22:10:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_codec_read [2021-12-06 22:10:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2021-12-06 22:10:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2021-12-06 22:10:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_new1 [2021-12-06 22:10:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_new1 [2021-12-06 22:10:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_asynch_fg_tx_scb [2021-12-06 22:10:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_asynch_fg_tx_scb [2021-12-06 22:10:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_format_width [2021-12-06 22:10:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_format_width [2021-12-06 22:10:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_direct_pointer [2021-12-06 22:10:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_direct_pointer [2021-12-06 22:10:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_spos_update_scb [2021-12-06 22:10:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_spos_update_scb [2021-12-06 22:10:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_output_open [2021-12-06 22:10:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_output_open [2021-12-06 22:10:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-06 22:10:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-12-06 22:10:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 22:10:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 22:10:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:10:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-06 22:10:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-06 22:10:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 22:10:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 22:10:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_spos_destroy [2021-12-06 22:10:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_spos_destroy [2021-12-06 22:10:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_pcm_channel [2021-12-06 22:10:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_pcm_channel [2021-12-06 22:10:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_task_tree [2021-12-06 22:10:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_task_tree [2021-12-06 22:10:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_output_trigger [2021-12-06 22:10:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_output_trigger [2021-12-06 22:10:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-06 22:10:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-06 22:10:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure frames_to_bytes [2021-12-06 22:10:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure frames_to_bytes [2021-12-06 22:10:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_chip_init [2021-12-06 22:10:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_chip_init [2021-12-06 22:10:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_free_pages [2021-12-06 22:10:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_free_pages [2021-12-06 22:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_peekBA0 [2021-12-06 22:10:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_peekBA0 [2021-12-06 22:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2021-12-06 22:10:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2021-12-06 22:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure _wrap_all_bits [2021-12-06 22:10:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure _wrap_all_bits [2021-12-06 22:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_poke [2021-12-06 22:10:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_poke [2021-12-06 22:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure dsp_load_sample [2021-12-06 22:10:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure dsp_load_sample [2021-12-06 22:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_playback_open [2021-12-06 22:10:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_playback_open [2021-12-06 22:10:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_create_scb [2021-12-06 22:10:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_create_scb [2021-12-06 22:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_lookup_symbol [2021-12-06 22:10:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_lookup_symbol [2021-12-06 22:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_transfer [2021-12-06 22:10:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_transfer [2021-12-06 22:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_wait_for_fifo [2021-12-06 22:10:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_wait_for_fifo [2021-12-06 22:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_download [2021-12-06 22:10:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_download [2021-12-06 22:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_capture_hw_params [2021-12-06 22:10:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_capture_hw_params [2021-12-06 22:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_remove_scb [2021-12-06 22:10:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_remove_scb [2021-12-06 22:10:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure cs46xx_dsp_enable_spdif_hw [2021-12-06 22:10:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cs46xx_dsp_enable_spdif_hw [2021-12-06 22:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2021-12-06 22:10:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2021-12-06 22:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-06 22:10:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-06 22:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure snd_cs46xx_midi_input_close [2021-12-06 22:10:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_cs46xx_midi_input_close [2021-12-06 22:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 22:10:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 22:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-06 22:10:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-06 22:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure _dsp_unlink_scb [2021-12-06 22:10:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure _dsp_unlink_scb [2021-12-06 22:10:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_register [2021-12-06 22:10:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_register [2021-12-06 22:10:46,187 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:10:46,191 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:10:52,900 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 22:12:20,762 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:12:20,789 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:12:20,789 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-06 22:12:20,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:12:20 BoogieIcfgContainer [2021-12-06 22:12:20,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:12:20,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:12:20,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:12:20,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:12:20,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:10:40" (1/3) ... [2021-12-06 22:12:20,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8884076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:12:20, skipping insertion in model container [2021-12-06 22:12:20,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:10:44" (2/3) ... [2021-12-06 22:12:20,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8884076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:12:20, skipping insertion in model container [2021-12-06 22:12:20,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:12:20" (3/3) ... [2021-12-06 22:12:20,804 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--pci--cs46xx--snd-cs46xx.ko-entry_point.cil.out.i [2021-12-06 22:12:20,808 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:12:20,809 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:12:20,866 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:12:20,873 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 22:12:20,873 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:12:20,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 4078 states, 2784 states have (on average 1.3922413793103448) internal successors, (3876), 2890 states have internal predecessors, (3876), 1137 states have call successors, (1137), 159 states have call predecessors, (1137), 158 states have return successors, (1119), 1111 states have call predecessors, (1119), 1119 states have call successors, (1119) [2021-12-06 22:12:20,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 22:12:20,968 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:12:20,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:12:20,969 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:12:20,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:12:20,973 INFO L85 PathProgramCache]: Analyzing trace with hash 78330796, now seen corresponding path program 1 times [2021-12-06 22:12:20,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:12:20,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063921589] [2021-12-06 22:12:20,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:12:20,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:12:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:12:21,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:12:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:12:21,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 22:12:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:12:21,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:12:21,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:12:21,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063921589] [2021-12-06 22:12:21,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063921589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:12:21,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:12:21,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:12:21,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795542714] [2021-12-06 22:12:21,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:12:21,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:12:21,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:12:21,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:12:21,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:12:21,634 INFO L87 Difference]: Start difference. First operand has 4078 states, 2784 states have (on average 1.3922413793103448) internal successors, (3876), 2890 states have internal predecessors, (3876), 1137 states have call successors, (1137), 159 states have call predecessors, (1137), 158 states have return successors, (1119), 1111 states have call predecessors, (1119), 1119 states have call successors, (1119) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 22:12:24,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:12:27,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:12:30,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:12:34,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:12:38,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:12:42,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:12:44,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:12:50,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:12:53,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:12:59,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:01,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:04,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:06,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:08,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:11,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:13,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:15,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:16,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:18,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:20,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:22,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:25,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:27,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:29,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:29,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:13:29,861 INFO L93 Difference]: Finished difference Result 11771 states and 18360 transitions. [2021-12-06 22:13:29,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:13:29,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2021-12-06 22:13:29,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:13:29,939 INFO L225 Difference]: With dead ends: 11771 [2021-12-06 22:13:29,939 INFO L226 Difference]: Without dead ends: 7645 [2021-12-06 22:13:29,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:13:29,972 INFO L933 BasicCegarLoop]: 6666 mSDtfsCounter, 5648 mSDsluCounter, 7958 mSDsCounter, 0 mSdLazyCounter, 3866 mSolverCounterSat, 2902 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6398 SdHoareTripleChecker+Valid, 14624 SdHoareTripleChecker+Invalid, 6784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2902 IncrementalHoareTripleChecker+Valid, 3866 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.4s IncrementalHoareTripleChecker+Time [2021-12-06 22:13:29,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6398 Valid, 14624 Invalid, 6784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2902 Valid, 3866 Invalid, 16 Unknown, 0 Unchecked, 67.4s Time] [2021-12-06 22:13:29,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2021-12-06 22:13:30,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 7103. [2021-12-06 22:13:30,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7103 states, 4858 states have (on average 1.3900782214903253) internal successors, (6753), 5005 states have internal predecessors, (6753), 1952 states have call successors, (1952), 293 states have call predecessors, (1952), 292 states have return successors, (1950), 1935 states have call predecessors, (1950), 1950 states have call successors, (1950) [2021-12-06 22:13:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7103 states to 7103 states and 10655 transitions. [2021-12-06 22:13:30,425 INFO L78 Accepts]: Start accepts. Automaton has 7103 states and 10655 transitions. Word has length 33 [2021-12-06 22:13:30,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:13:30,426 INFO L470 AbstractCegarLoop]: Abstraction has 7103 states and 10655 transitions. [2021-12-06 22:13:30,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 22:13:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 7103 states and 10655 transitions. [2021-12-06 22:13:30,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-06 22:13:30,441 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:13:30,442 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:13:30,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:13:30,442 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:13:30,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:13:30,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1278970975, now seen corresponding path program 1 times [2021-12-06 22:13:30,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:13:30,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294477656] [2021-12-06 22:13:30,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:13:30,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:13:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:30,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:13:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:30,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 22:13:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:30,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 22:13:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:30,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 22:13:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:13:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 22:13:30,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:13:30,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294477656] [2021-12-06 22:13:30,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294477656] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:13:30,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:13:30,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:13:30,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325386348] [2021-12-06 22:13:30,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:13:30,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:13:30,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:13:30,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:13:30,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:13:30,786 INFO L87 Difference]: Start difference. First operand 7103 states and 10655 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:13:34,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:37,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:40,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:43,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:47,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:13:55,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:00,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:03,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:07,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:11,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:14,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:16,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:19,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:21,668 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:23,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:25,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:27,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:29,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:31,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:33,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:34,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:36,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:37,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:39,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:41,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:43,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:45,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:48,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:50,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:53,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:56,110 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:58,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:14:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:14:58,609 INFO L93 Difference]: Finished difference Result 22160 states and 33878 transitions. [2021-12-06 22:14:58,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:14:58,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2021-12-06 22:14:58,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:14:58,748 INFO L225 Difference]: With dead ends: 22160 [2021-12-06 22:14:58,748 INFO L226 Difference]: Without dead ends: 15062 [2021-12-06 22:14:58,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:14:58,778 INFO L933 BasicCegarLoop]: 7472 mSDtfsCounter, 6766 mSDsluCounter, 8170 mSDsCounter, 0 mSdLazyCounter, 4285 mSolverCounterSat, 3026 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7708 SdHoareTripleChecker+Valid, 15642 SdHoareTripleChecker+Invalid, 7334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3026 IncrementalHoareTripleChecker+Valid, 4285 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.1s IncrementalHoareTripleChecker+Time [2021-12-06 22:14:58,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7708 Valid, 15642 Invalid, 7334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3026 Valid, 4285 Invalid, 23 Unknown, 0 Unchecked, 87.1s Time] [2021-12-06 22:14:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15062 states. [2021-12-06 22:14:59,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15062 to 13991. [2021-12-06 22:14:59,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13991 states, 9566 states have (on average 1.3899226426928706) internal successors, (13296), 9864 states have internal predecessors, (13296), 3841 states have call successors, (3841), 580 states have call predecessors, (3841), 583 states have return successors, (3867), 3808 states have call predecessors, (3867), 3839 states have call successors, (3867) [2021-12-06 22:14:59,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13991 states to 13991 states and 21004 transitions. [2021-12-06 22:14:59,418 INFO L78 Accepts]: Start accepts. Automaton has 13991 states and 21004 transitions. Word has length 55 [2021-12-06 22:14:59,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:14:59,418 INFO L470 AbstractCegarLoop]: Abstraction has 13991 states and 21004 transitions. [2021-12-06 22:14:59,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:14:59,419 INFO L276 IsEmpty]: Start isEmpty. Operand 13991 states and 21004 transitions. [2021-12-06 22:14:59,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 22:14:59,427 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:14:59,427 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:14:59,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:14:59,427 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:14:59,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:14:59,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1736757413, now seen corresponding path program 1 times [2021-12-06 22:14:59,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:14:59,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142787486] [2021-12-06 22:14:59,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:14:59,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:14:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:14:59,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:14:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:14:59,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 22:14:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:14:59,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 22:14:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:14:59,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 22:14:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:14:59,771 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 22:14:59,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:14:59,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142787486] [2021-12-06 22:14:59,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142787486] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:14:59,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:14:59,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:14:59,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636524575] [2021-12-06 22:14:59,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:14:59,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:14:59,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:14:59,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:14:59,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:14:59,773 INFO L87 Difference]: Start difference. First operand 13991 states and 21004 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:15:05,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:06,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:11,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:15,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:25,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:27,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:31,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:33,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:39,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:41,394 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:42,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:45,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:47,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:49,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:52,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:55,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:56,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:58,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:01,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:02,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:04,369 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:06,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:08,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:10,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:13,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:15,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:17,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:19,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:22,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:24,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:24,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:16:24,291 INFO L93 Difference]: Finished difference Result 43808 states and 66935 transitions. [2021-12-06 22:16:24,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:16:24,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2021-12-06 22:16:24,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:16:24,429 INFO L225 Difference]: With dead ends: 43808 [2021-12-06 22:16:24,429 INFO L226 Difference]: Without dead ends: 29822 [2021-12-06 22:16:24,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:16:24,483 INFO L933 BasicCegarLoop]: 7511 mSDtfsCounter, 6790 mSDsluCounter, 8216 mSDsCounter, 0 mSdLazyCounter, 4286 mSolverCounterSat, 3049 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7735 SdHoareTripleChecker+Valid, 15727 SdHoareTripleChecker+Invalid, 7356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3049 IncrementalHoareTripleChecker+Valid, 4286 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.5s IncrementalHoareTripleChecker+Time [2021-12-06 22:16:24,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7735 Valid, 15727 Invalid, 7356 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3049 Valid, 4286 Invalid, 21 Unknown, 0 Unchecked, 83.5s Time] [2021-12-06 22:16:24,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29822 states. [2021-12-06 22:16:25,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29822 to 27689. [2021-12-06 22:16:25,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27689 states, 18924 states have (on average 1.3889241175227225) internal successors, (26284), 19520 states have internal predecessors, (26284), 7603 states have call successors, (7603), 1154 states have call predecessors, (7603), 1161 states have return successors, (7657), 7538 states have call predecessors, (7657), 7601 states have call successors, (7657) [2021-12-06 22:16:25,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27689 states to 27689 states and 41544 transitions. [2021-12-06 22:16:25,683 INFO L78 Accepts]: Start accepts. Automaton has 27689 states and 41544 transitions. Word has length 56 [2021-12-06 22:16:25,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:16:25,684 INFO L470 AbstractCegarLoop]: Abstraction has 27689 states and 41544 transitions. [2021-12-06 22:16:25,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:16:25,684 INFO L276 IsEmpty]: Start isEmpty. Operand 27689 states and 41544 transitions. [2021-12-06 22:16:25,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 22:16:25,691 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:16:25,691 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:16:25,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:16:25,691 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:16:25,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:16:25,691 INFO L85 PathProgramCache]: Analyzing trace with hash 731026740, now seen corresponding path program 1 times [2021-12-06 22:16:25,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:16:25,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070425498] [2021-12-06 22:16:25,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:16:25,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:16:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:25,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:16:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 22:16:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 22:16:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:25,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-06 22:16:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 22:16:25,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:16:25,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070425498] [2021-12-06 22:16:25,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070425498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:16:25,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:16:25,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:16:25,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345620154] [2021-12-06 22:16:25,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:16:25,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:16:25,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:16:25,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:16:25,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:16:25,998 INFO L87 Difference]: Start difference. First operand 27689 states and 41544 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:16:29,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:33,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:36,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:40,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:44,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:55,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:58,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:00,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:02,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:04,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:07,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:10,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:14,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:17,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:19,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:22,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:24,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:26,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:28,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:30,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:34,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:36,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:38,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:40,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:42,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:44,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:46,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:48,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:50,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:52,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:54,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:57,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:17:59,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:01,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:03,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:05,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:07,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:10,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:12,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:15,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:17,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:18:17,361 INFO L93 Difference]: Finished difference Result 86666 states and 132203 transitions. [2021-12-06 22:18:17,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:18:17,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2021-12-06 22:18:17,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:18:17,636 INFO L225 Difference]: With dead ends: 86666 [2021-12-06 22:18:17,636 INFO L226 Difference]: Without dead ends: 58982 [2021-12-06 22:18:17,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:18:17,788 INFO L933 BasicCegarLoop]: 8096 mSDtfsCounter, 6710 mSDsluCounter, 8513 mSDsCounter, 0 mSdLazyCounter, 4396 mSolverCounterSat, 2897 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7649 SdHoareTripleChecker+Valid, 16609 SdHoareTripleChecker+Invalid, 7327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2897 IncrementalHoareTripleChecker+Valid, 4396 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 109.6s IncrementalHoareTripleChecker+Time [2021-12-06 22:18:17,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7649 Valid, 16609 Invalid, 7327 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2897 Valid, 4396 Invalid, 34 Unknown, 0 Unchecked, 109.6s Time] [2021-12-06 22:18:17,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58982 states. [2021-12-06 22:18:19,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58982 to 54717. [2021-12-06 22:18:19,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54717 states, 37380 states have (on average 1.387800963081862) internal successors, (51876), 38572 states have internal predecessors, (51876), 15019 states have call successors, (15019), 2302 states have call predecessors, (15019), 2317 states have return successors, (15129), 14890 states have call predecessors, (15129), 15017 states have call successors, (15129) [2021-12-06 22:18:19,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54717 states to 54717 states and 82024 transitions. [2021-12-06 22:18:19,845 INFO L78 Accepts]: Start accepts. Automaton has 54717 states and 82024 transitions. Word has length 58 [2021-12-06 22:18:19,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:18:19,845 INFO L470 AbstractCegarLoop]: Abstraction has 54717 states and 82024 transitions. [2021-12-06 22:18:19,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:18:19,846 INFO L276 IsEmpty]: Start isEmpty. Operand 54717 states and 82024 transitions. [2021-12-06 22:18:19,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 22:18:19,926 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:18:19,926 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:18:19,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 22:18:19,927 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:18:19,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:18:19,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1306919861, now seen corresponding path program 1 times [2021-12-06 22:18:19,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:18:19,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871571794] [2021-12-06 22:18:19,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:18:19,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:18:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:18:20,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:18:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:18:20,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 22:18:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:18:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 22:18:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:18:20,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-06 22:18:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:18:20,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 22:18:20,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:18:20,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871571794] [2021-12-06 22:18:20,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871571794] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:18:20,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:18:20,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:18:20,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572896617] [2021-12-06 22:18:20,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:18:20,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:18:20,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:18:20,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:18:20,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:18:20,283 INFO L87 Difference]: Start difference. First operand 54717 states and 82024 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:18:25,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:27,831 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:32,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:36,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:47,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:48,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:51,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:18:57,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:00,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:02,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:04,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:06,617 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:09,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:12,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:14,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:15,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:16,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:18,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:20,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:21,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:23,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:24,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:26,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:28,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:31,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:33,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:36,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:38,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:39,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:19:39,007 INFO L93 Difference]: Finished difference Result 171430 states and 261151 transitions. [2021-12-06 22:19:39,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:19:39,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2021-12-06 22:19:39,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:19:39,591 INFO L225 Difference]: With dead ends: 171430 [2021-12-06 22:19:39,591 INFO L226 Difference]: Without dead ends: 116718 [2021-12-06 22:19:39,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:19:39,775 INFO L933 BasicCegarLoop]: 7937 mSDtfsCounter, 6749 mSDsluCounter, 8493 mSDsCounter, 0 mSdLazyCounter, 4339 mSolverCounterSat, 2949 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7682 SdHoareTripleChecker+Valid, 16430 SdHoareTripleChecker+Invalid, 7303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2949 IncrementalHoareTripleChecker+Valid, 4339 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.6s IncrementalHoareTripleChecker+Time [2021-12-06 22:19:39,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7682 Valid, 16430 Invalid, 7303 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2949 Valid, 4339 Invalid, 15 Unknown, 0 Unchecked, 75.6s Time] [2021-12-06 22:19:39,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116718 states. [2021-12-06 22:19:43,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116718 to 108185. [2021-12-06 22:19:43,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108185 states, 73880 states have (on average 1.386897671900379) internal successors, (102464), 76256 states have internal predecessors, (102464), 29679 states have call successors, (29679), 4602 states have call predecessors, (29679), 4625 states have return successors, (29901), 29422 states have call predecessors, (29901), 29677 states have call successors, (29901) [2021-12-06 22:19:44,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108185 states to 108185 states and 162044 transitions. [2021-12-06 22:19:44,184 INFO L78 Accepts]: Start accepts. Automaton has 108185 states and 162044 transitions. Word has length 59 [2021-12-06 22:19:44,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:19:44,184 INFO L470 AbstractCegarLoop]: Abstraction has 108185 states and 162044 transitions. [2021-12-06 22:19:44,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:19:44,185 INFO L276 IsEmpty]: Start isEmpty. Operand 108185 states and 162044 transitions. [2021-12-06 22:19:44,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-06 22:19:44,192 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:19:44,192 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:19:44,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 22:19:44,192 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:19:44,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:19:44,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2076365237, now seen corresponding path program 1 times [2021-12-06 22:19:44,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:19:44,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566576498] [2021-12-06 22:19:44,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:19:44,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:19:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:19:44,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:19:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:19:44,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 22:19:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:19:44,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-06 22:19:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:19:44,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 22:19:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:19:44,618 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 22:19:44,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:19:44,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566576498] [2021-12-06 22:19:44,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566576498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:19:44,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:19:44,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:19:44,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713172413] [2021-12-06 22:19:44,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:19:44,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:19:44,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:19:44,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:19:44,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:19:44,620 INFO L87 Difference]: Start difference. First operand 108185 states and 162044 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:19:50,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:52,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:19:57,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:01,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:12,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 22:20:16,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:19,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:21,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:23,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:31,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:34,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:36,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:38,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:41,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:44,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:47,214 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:49,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:51,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:53,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:56,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:58,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:01,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:03,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:06,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:08,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:10,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:12,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:15,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:17,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:18,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:21:18,512 INFO L93 Difference]: Finished difference Result 339082 states and 515659 transitions. [2021-12-06 22:21:18,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:21:18,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 61 [2021-12-06 22:21:18,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:21:19,741 INFO L225 Difference]: With dead ends: 339082 [2021-12-06 22:21:19,741 INFO L226 Difference]: Without dead ends: 230902 [2021-12-06 22:21:20,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:21:20,126 INFO L933 BasicCegarLoop]: 8131 mSDtfsCounter, 6681 mSDsluCounter, 8600 mSDsCounter, 0 mSdLazyCounter, 4359 mSolverCounterSat, 2902 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7616 SdHoareTripleChecker+Valid, 16731 SdHoareTripleChecker+Invalid, 7285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2902 IncrementalHoareTripleChecker+Valid, 4359 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 87.4s IncrementalHoareTripleChecker+Time [2021-12-06 22:21:20,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7616 Valid, 16731 Invalid, 7285 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2902 Valid, 4359 Invalid, 24 Unknown, 0 Unchecked, 87.4s Time] [2021-12-06 22:21:20,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230902 states. [2021-12-06 22:21:27,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230902 to 213817. [2021-12-06 22:21:27,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213817 states, 145944 states have (on average 1.3855177328290302) internal successors, (202208), 150688 states have internal predecessors, (202208), 58639 states have call successors, (58639), 9194 states have call predecessors, (58639), 9233 states have return successors, (59085), 58126 states have call predecessors, (59085), 58637 states have call successors, (59085) [2021-12-06 22:21:28,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213817 states to 213817 states and 319932 transitions. [2021-12-06 22:21:28,989 INFO L78 Accepts]: Start accepts. Automaton has 213817 states and 319932 transitions. Word has length 61 [2021-12-06 22:21:28,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:21:28,989 INFO L470 AbstractCegarLoop]: Abstraction has 213817 states and 319932 transitions. [2021-12-06 22:21:28,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:21:28,989 INFO L276 IsEmpty]: Start isEmpty. Operand 213817 states and 319932 transitions. [2021-12-06 22:21:28,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-06 22:21:28,994 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:21:28,994 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:21:28,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 22:21:28,995 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:21:28,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:21:28,995 INFO L85 PathProgramCache]: Analyzing trace with hash 2003838182, now seen corresponding path program 1 times [2021-12-06 22:21:28,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:21:28,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256306549] [2021-12-06 22:21:28,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:21:28,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:21:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:29,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:21:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 22:21:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:29,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 22:21:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:29,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-06 22:21:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:29,262 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 22:21:29,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:21:29,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256306549] [2021-12-06 22:21:29,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256306549] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:21:29,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:21:29,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:21:29,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027028039] [2021-12-06 22:21:29,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:21:29,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:21:29,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:21:29,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:21:29,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:21:29,264 INFO L87 Difference]: Start difference. First operand 213817 states and 319932 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:21:33,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:35,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:38,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:43,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:47,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:02,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:07,229 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:09,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:11,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:20,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:25,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:27,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:29,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:31,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:35,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:37,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:40,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:42,437 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:44,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:46,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:49,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:51,198 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:52,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:54,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:56,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:59,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:01,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:04,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:06,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:08,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:10,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:14,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:16,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:18,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:20,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:20,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:23:20,945 INFO L93 Difference]: Finished difference Result 670698 states and 1018411 transitions. [2021-12-06 22:23:20,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:23:20,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2021-12-06 22:23:20,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:23:23,496 INFO L225 Difference]: With dead ends: 670698 [2021-12-06 22:23:23,496 INFO L226 Difference]: Without dead ends: 456886 [2021-12-06 22:23:24,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:23:24,476 INFO L933 BasicCegarLoop]: 8412 mSDtfsCounter, 6663 mSDsluCounter, 8760 mSDsCounter, 0 mSdLazyCounter, 4388 mSolverCounterSat, 2822 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7600 SdHoareTripleChecker+Valid, 17172 SdHoareTripleChecker+Invalid, 7242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2822 IncrementalHoareTripleChecker+Valid, 4388 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.6s IncrementalHoareTripleChecker+Time [2021-12-06 22:23:24,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7600 Valid, 17172 Invalid, 7242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2822 Valid, 4388 Invalid, 32 Unknown, 0 Unchecked, 99.6s Time] [2021-12-06 22:23:24,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456886 states. [2021-12-06 22:23:40,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456886 to 422681. [2021-12-06 22:23:41,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422681 states, 288376 states have (on average 1.3846367242766389) internal successors, (399296), 297856 states have internal predecessors, (399296), 115887 states have call successors, (115887), 18346 states have call predecessors, (115887), 18417 states have return successors, (116781), 114862 states have call predecessors, (116781), 115885 states have call successors, (116781) [2021-12-06 22:23:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422681 states to 422681 states and 631964 transitions. [2021-12-06 22:23:44,149 INFO L78 Accepts]: Start accepts. Automaton has 422681 states and 631964 transitions. Word has length 63 [2021-12-06 22:23:44,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:23:44,150 INFO L470 AbstractCegarLoop]: Abstraction has 422681 states and 631964 transitions. [2021-12-06 22:23:44,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:23:44,150 INFO L276 IsEmpty]: Start isEmpty. Operand 422681 states and 631964 transitions. [2021-12-06 22:23:44,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-06 22:23:44,157 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:23:44,157 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:23:44,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 22:23:44,157 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:23:44,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:23:44,158 INFO L85 PathProgramCache]: Analyzing trace with hash 311807272, now seen corresponding path program 1 times [2021-12-06 22:23:44,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:23:44,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686291299] [2021-12-06 22:23:44,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:23:44,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:23:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:23:44,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:23:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:23:44,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 22:23:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:23:44,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 22:23:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:23:44,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-06 22:23:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:23:44,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:23:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:23:44,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-06 22:23:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:23:44,443 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 22:23:44,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:23:44,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686291299] [2021-12-06 22:23:44,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686291299] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:23:44,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:23:44,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:23:44,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097742080] [2021-12-06 22:23:44,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:23:44,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:23:44,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:23:44,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:23:44,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:23:44,445 INFO L87 Difference]: Start difference. First operand 422681 states and 631964 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-06 22:23:49,446 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:52,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []