./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y --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 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:34:21,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:34:21,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:34:21,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:34:21,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:34:21,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:34:21,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:34:21,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:34:21,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:34:21,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:34:21,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:34:21,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:34:21,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:34:21,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:34:21,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:34:21,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:34:21,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:34:21,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:34:21,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:34:21,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:34:21,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:34:21,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:34:21,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:34:21,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:34:21,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:34:21,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:34:21,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:34:21,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:34:21,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:34:21,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:34:21,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:34:21,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:34:21,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:34:21,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:34:21,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:34:21,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:34:21,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:34:21,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:34:21,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:34:21,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:34:21,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:34:21,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 17:34:21,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:34:21,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:34:21,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:34:21,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:34:21,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:34:21,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:34:21,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:34:21,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:34:21,333 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:34:21,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:34:21,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:34:21,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:34:21,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:34:21,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:34:21,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:34:21,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:34:21,335 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:34:21,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:34:21,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:34:21,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:34:21,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:34:21,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:34:21,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:34:21,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:34:21,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:34:21,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:34:21,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:34:21,338 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:34:21,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:34:21,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:34:21,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:34:21,340 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_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 [2021-11-13 17:34:21,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:34:21,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:34:21,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:34:21,641 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:34:21,642 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:34:21,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-13 17:34:21,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/data/853109494/40e80e5137fa444bbc7af4c7070ed6f7/FLAG56f603eab [2021-11-13 17:34:22,714 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:34:22,716 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-13 17:34:22,756 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/data/853109494/40e80e5137fa444bbc7af4c7070ed6f7/FLAG56f603eab [2021-11-13 17:34:23,090 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/data/853109494/40e80e5137fa444bbc7af4c7070ed6f7 [2021-11-13 17:34:23,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:34:23,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:34:23,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:34:23,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:34:23,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:34:23,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:34:23" (1/1) ... [2021-11-13 17:34:23,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dde8b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:23, skipping insertion in model container [2021-11-13 17:34:23,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:34:23" (1/1) ... [2021-11-13 17:34:23,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:34:23,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:34:25,621 WARN L228 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_c0359aa3-06bd-4dd3-96b6-04291afb970d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2021-11-13 17:34:25,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:34:25,928 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:34:26,453 WARN L228 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_c0359aa3-06bd-4dd3-96b6-04291afb970d/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2021-11-13 17:34:26,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:34:26,619 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:34:26,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26 WrapperNode [2021-11-13 17:34:26,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:34:26,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:34:26,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:34:26,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:34:26,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (1/1) ... [2021-11-13 17:34:26,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (1/1) ... [2021-11-13 17:34:26,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:34:26,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:34:26,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:34:26,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:34:27,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (1/1) ... [2021-11-13 17:34:27,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (1/1) ... [2021-11-13 17:34:27,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (1/1) ... [2021-11-13 17:34:27,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (1/1) ... [2021-11-13 17:34:27,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (1/1) ... [2021-11-13 17:34:27,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (1/1) ... [2021-11-13 17:34:27,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (1/1) ... [2021-11-13 17:34:27,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:34:27,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:34:27,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:34:27,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:34:27,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (1/1) ... [2021-11-13 17:34:27,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:34:27,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:34:27,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:34:27,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0359aa3-06bd-4dd3-96b6-04291afb970d/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:34:27,399 INFO L130 BoogieDeclarations]: Found specification of procedure smi_stats_proc_open [2021-11-13 17:34:27,400 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_stats_proc_open [2021-11-13 17:34:27,401 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-13 17:34:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-13 17:34:27,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 17:34:27,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 17:34:27,401 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_poll [2021-11-13 17:34:27,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_poll [2021-11-13 17:34:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure format_lan_msg [2021-11-13 17:34:27,402 INFO L138 BoogieDeclarations]: Found implementation of procedure format_lan_msg [2021-11-13 17:34:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-13 17:34:27,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-13 17:34:27,402 INFO L130 BoogieDeclarations]: Found specification of procedure copy_event_into_recv_msg [2021-11-13 17:34:27,403 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_event_into_recv_msg [2021-11-13 17:34:27,403 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_panic_request_and_wait [2021-11-13 17:34:27,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_panic_request_and_wait [2021-11-13 17:34:27,403 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-13 17:34:27,403 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-13 17:34:27,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cmd_rcvrs_mutex_of_ipmi_smi [2021-11-13 17:34:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cmd_rcvrs_mutex_of_ipmi_smi [2021-11-13 17:34:27,404 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-13 17:34:27,404 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-13 17:34:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2021-11-13 17:34:27,405 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2021-11-13 17:34:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 17:34:27,405 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 17:34:27,405 INFO L130 BoogieDeclarations]: Found specification of procedure intf_next_seq [2021-11-13 17:34:27,405 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_next_seq [2021-11-13 17:34:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 17:34:27,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmd_rcvrs_mutex_of_ipmi_smi [2021-11-13 17:34:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmd_rcvrs_mutex_of_ipmi_smi [2021-11-13 17:34:27,407 INFO L130 BoogieDeclarations]: Found specification of procedure PDE [2021-11-13 17:34:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE [2021-11-13 17:34:27,407 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-13 17:34:27,407 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-13 17:34:27,408 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-13 17:34:27,408 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-13 17:34:27,408 INFO L130 BoogieDeclarations]: Found specification of procedure i_ipmi_request [2021-11-13 17:34:27,408 INFO L138 BoogieDeclarations]: Found implementation of procedure i_ipmi_request [2021-11-13 17:34:27,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 17:34:27,409 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2021-11-13 17:34:27,409 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2021-11-13 17:34:27,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 17:34:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-13 17:34:27,410 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-13 17:34:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 17:34:27,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 17:34:27,411 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 17:34:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure maintenance_mode_update [2021-11-13 17:34:27,411 INFO L138 BoogieDeclarations]: Found implementation of procedure maintenance_mode_update [2021-11-13 17:34:27,411 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-13 17:34:27,411 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-13 17:34:27,412 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-13 17:34:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-13 17:34:27,412 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-13 17:34:27,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-13 17:34:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 17:34:27,413 INFO L130 BoogieDeclarations]: Found specification of procedure smi_version_proc_open [2021-11-13 17:34:27,414 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_version_proc_open [2021-11-13 17:34:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-13 17:34:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-13 17:34:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure send_channel_info_cmd [2021-11-13 17:34:27,415 INFO L138 BoogieDeclarations]: Found implementation of procedure send_channel_info_cmd [2021-11-13 17:34:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 17:34:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-13 17:34:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 17:34:27,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 17:34:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2021-11-13 17:34:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2021-11-13 17:34:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-13 17:34:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-13 17:34:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-11-13 17:34:27,418 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-11-13 17:34:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2021-11-13 17:34:27,418 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2021-11-13 17:34:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure is_lan_addr [2021-11-13 17:34:27,418 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lan_addr [2021-11-13 17:34:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 17:34:27,419 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 17:34:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2021-11-13 17:34:27,419 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2021-11-13 17:34:27,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:34:27,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:34:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2021-11-13 17:34:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-13 17:34:27,420 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-13 17:34:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 17:34:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 17:34:27,420 INFO L130 BoogieDeclarations]: Found specification of procedure intf_find_seq [2021-11-13 17:34:27,421 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_find_seq [2021-11-13 17:34:27,421 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-13 17:34:27,421 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-13 17:34:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-13 17:34:27,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-13 17:34:27,422 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-13 17:34:27,423 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-13 17:34:27,423 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2021-11-13 17:34:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2021-11-13 17:34:27,424 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-13 17:34:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-13 17:34:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:34:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-13 17:34:27,425 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-13 17:34:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2021-11-13 17:34:27,426 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2021-11-13 17:34:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 17:34:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 17:34:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure find_cmd_rcvr [2021-11-13 17:34:27,427 INFO L138 BoogieDeclarations]: Found implementation of procedure find_cmd_rcvr [2021-11-13 17:34:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-13 17:34:27,427 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-13 17:34:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_init_msghandler [2021-11-13 17:34:27,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_init_msghandler [2021-11-13 17:34:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-13 17:34:27,428 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-13 17:34:27,428 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2021-11-13 17:34:27,429 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2021-11-13 17:34:27,429 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_recv_msg [2021-11-13 17:34:27,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_recv_msg [2021-11-13 17:34:27,430 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-13 17:34:27,433 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-13 17:34:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-11-13 17:34:27,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-11-13 17:34:27,434 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2021-11-13 17:34:27,435 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2021-11-13 17:34:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-13 17:34:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-13 17:34:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure smi_ipmb_proc_open [2021-11-13 17:34:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_ipmb_proc_open [2021-11-13 17:34:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 17:34:27,444 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 17:34:27,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 17:34:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 17:34:27,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 17:34:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_addr [2021-11-13 17:34:27,445 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_addr [2021-11-13 17:34:27,445 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_bcast_addr [2021-11-13 17:34:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_bcast_addr [2021-11-13 17:34:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2021-11-13 17:34:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2021-11-13 17:34:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-13 17:34:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-13 17:34:27,446 INFO L130 BoogieDeclarations]: Found specification of procedure format_ipmb_msg [2021-11-13 17:34:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure format_ipmb_msg [2021-11-13 17:34:27,447 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-13 17:34:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-13 17:34:27,447 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2021-11-13 17:34:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2021-11-13 17:34:27,447 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-13 17:34:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-13 17:34:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-13 17:34:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-13 17:34:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-13 17:34:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-13 17:34:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure ipmb_checksum [2021-11-13 17:34:27,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmb_checksum [2021-11-13 17:34:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2021-11-13 17:34:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2021-11-13 17:34:27,450 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-13 17:34:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-13 17:34:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:34:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2021-11-13 17:34:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2021-11-13 17:34:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-13 17:34:27,451 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-11-13 17:34:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-11-13 17:34:42,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:34:42,904 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 17:34:42,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:34:42 BoogieIcfgContainer [2021-11-13 17:34:42,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:34:42,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:34:42,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:34:42,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:34:42,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:34:23" (1/3) ... [2021-11-13 17:34:42,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423a9755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:34:42, skipping insertion in model container [2021-11-13 17:34:42,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:34:26" (2/3) ... [2021-11-13 17:34:42,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423a9755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:34:42, skipping insertion in model container [2021-11-13 17:34:42,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:34:42" (3/3) ... [2021-11-13 17:34:42,920 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2021-11-13 17:34:42,927 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:34:42,927 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 17:34:42,998 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:34:43,006 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 17:34:43,007 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 17:34:43,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 1221 states, 841 states have (on average 1.3626634958382877) internal successors, (1146), 891 states have internal predecessors, (1146), 304 states have call successors, (304), 74 states have call predecessors, (304), 74 states have return successors, (304), 298 states have call predecessors, (304), 304 states have call successors, (304) [2021-11-13 17:34:43,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 17:34:43,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:43,066 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:34:43,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:34:43,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:43,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1371765540, now seen corresponding path program 1 times [2021-11-13 17:34:43,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:43,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026613021] [2021-11-13 17:34:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:43,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:34:43,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:43,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026613021] [2021-11-13 17:34:43,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026613021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:43,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:43,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:34:43,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904963603] [2021-11-13 17:34:43,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:43,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:34:43,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:43,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:34:43,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:34:43,925 INFO L87 Difference]: Start difference. First operand has 1221 states, 841 states have (on average 1.3626634958382877) internal successors, (1146), 891 states have internal predecessors, (1146), 304 states have call successors, (304), 74 states have call predecessors, (304), 74 states have return successors, (304), 298 states have call predecessors, (304), 304 states have call successors, (304) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:46,023 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:34:46,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:34:46,448 INFO L93 Difference]: Finished difference Result 3588 states and 5271 transitions. [2021-11-13 17:34:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:34:46,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-13 17:34:46,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:34:46,496 INFO L225 Difference]: With dead ends: 3588 [2021-11-13 17:34:46,496 INFO L226 Difference]: Without dead ends: 2366 [2021-11-13 17:34:46,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:34:46,520 INFO L933 BasicCegarLoop]: 2781 mSDtfsCounter, 1675 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2094.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 4481 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.80ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2218.43ms IncrementalHoareTripleChecker+Time [2021-11-13 17:34:46,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1675 Valid, 4481 Invalid, 15 Unknown, 0 Unchecked, 41.80ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2218.43ms Time] [2021-11-13 17:34:46,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2021-11-13 17:34:46,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2362. [2021-11-13 17:34:46,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 1629 states have (on average 1.3597298956414978) internal successors, (2215), 1716 states have internal predecessors, (2215), 590 states have call successors, (590), 143 states have call predecessors, (590), 142 states have return successors, (580), 568 states have call predecessors, (580), 580 states have call successors, (580) [2021-11-13 17:34:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 3385 transitions. [2021-11-13 17:34:46,861 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 3385 transitions. Word has length 16 [2021-11-13 17:34:46,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:34:46,862 INFO L470 AbstractCegarLoop]: Abstraction has 2362 states and 3385 transitions. [2021-11-13 17:34:46,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:34:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 3385 transitions. [2021-11-13 17:34:46,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 17:34:46,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:34:46,875 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] [2021-11-13 17:34:46,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:34:46,880 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:34:46,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:34:46,883 INFO L85 PathProgramCache]: Analyzing trace with hash 24298474, now seen corresponding path program 1 times [2021-11-13 17:34:46,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:34:46,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138934233] [2021-11-13 17:34:46,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:34:46,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:34:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:47,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:34:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:34:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:34:47,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:34:47,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138934233] [2021-11-13 17:34:47,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138934233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:34:47,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:34:47,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:34:47,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410019650] [2021-11-13 17:34:47,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:34:47,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:34:47,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:34:47,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:34:47,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:34:47,195 INFO L87 Difference]: Start difference. First operand 2362 states and 3385 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:34:49,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:06,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:09,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:11,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:12,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:14,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:17,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:19,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:22,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:23,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:35:23,563 INFO L93 Difference]: Finished difference Result 7335 states and 10672 transitions. [2021-11-13 17:35:23,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 17:35:23,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-11-13 17:35:23,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:35:23,613 INFO L225 Difference]: With dead ends: 7335 [2021-11-13 17:35:23,613 INFO L226 Difference]: Without dead ends: 4976 [2021-11-13 17:35:23,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:35:23,633 INFO L933 BasicCegarLoop]: 2018 mSDtfsCounter, 2994 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 6323 mSolverCounterSat, 2068 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33485.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3318 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 8397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 81.62ms SdHoareTripleChecker+Time, 2068 IncrementalHoareTripleChecker+Valid, 6323 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35653.30ms IncrementalHoareTripleChecker+Time [2021-11-13 17:35:23,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3318 Valid, 2742 Invalid, 8397 Unknown, 0 Unchecked, 81.62ms Time], IncrementalHoareTripleChecker [2068 Valid, 6323 Invalid, 6 Unknown, 0 Unchecked, 35653.30ms Time] [2021-11-13 17:35:23,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4976 states. [2021-11-13 17:35:23,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4976 to 4668. [2021-11-13 17:35:23,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4668 states, 3222 states have (on average 1.3597144630664184) internal successors, (4381), 3388 states have internal predecessors, (4381), 1163 states have call successors, (1163), 282 states have call predecessors, (1163), 282 states have return successors, (1156), 1129 states have call predecessors, (1156), 1153 states have call successors, (1156) [2021-11-13 17:35:24,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4668 states to 4668 states and 6700 transitions. [2021-11-13 17:35:24,012 INFO L78 Accepts]: Start accepts. Automaton has 4668 states and 6700 transitions. Word has length 23 [2021-11-13 17:35:24,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:35:24,013 INFO L470 AbstractCegarLoop]: Abstraction has 4668 states and 6700 transitions. [2021-11-13 17:35:24,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:35:24,014 INFO L276 IsEmpty]: Start isEmpty. Operand 4668 states and 6700 transitions. [2021-11-13 17:35:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 17:35:24,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:35:24,017 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] [2021-11-13 17:35:24,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:35:24,017 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:35:24,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:24,018 INFO L85 PathProgramCache]: Analyzing trace with hash -46651610, now seen corresponding path program 1 times [2021-11-13 17:35:24,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:24,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117574754] [2021-11-13 17:35:24,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:24,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:24,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:35:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:35:24,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:35:24,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117574754] [2021-11-13 17:35:24,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117574754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:35:24,293 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:35:24,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 17:35:24,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958885504] [2021-11-13 17:35:24,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:35:24,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:35:24,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:35:24,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:35:24,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:35:24,297 INFO L87 Difference]: Start difference. First operand 4668 states and 6700 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:35:26,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:33,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:37,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:38,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:35:38,638 INFO L93 Difference]: Finished difference Result 8402 states and 12170 transitions. [2021-11-13 17:35:38,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:35:38,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-11-13 17:35:38,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:35:38,676 INFO L225 Difference]: With dead ends: 8402 [2021-11-13 17:35:38,676 INFO L226 Difference]: Without dead ends: 3737 [2021-11-13 17:35:38,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:35:38,703 INFO L933 BasicCegarLoop]: 1732 mSDtfsCounter, 2092 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 605 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13183.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 3354 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.06ms SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14011.96ms IncrementalHoareTripleChecker+Time [2021-11-13 17:35:38,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2269 Valid, 3354 Invalid, 2185 Unknown, 0 Unchecked, 38.06ms Time], IncrementalHoareTripleChecker [605 Valid, 1578 Invalid, 2 Unknown, 0 Unchecked, 14011.96ms Time] [2021-11-13 17:35:38,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2021-11-13 17:35:38,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3521. [2021-11-13 17:35:38,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3521 states, 2430 states have (on average 1.3584362139917696) internal successors, (3301), 2557 states have internal predecessors, (3301), 877 states have call successors, (877), 213 states have call predecessors, (877), 213 states have return successors, (870), 849 states have call predecessors, (870), 867 states have call successors, (870) [2021-11-13 17:35:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3521 states to 3521 states and 5048 transitions. [2021-11-13 17:35:38,991 INFO L78 Accepts]: Start accepts. Automaton has 3521 states and 5048 transitions. Word has length 25 [2021-11-13 17:35:38,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:35:38,991 INFO L470 AbstractCegarLoop]: Abstraction has 3521 states and 5048 transitions. [2021-11-13 17:35:38,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:35:38,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3521 states and 5048 transitions. [2021-11-13 17:35:38,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-13 17:35:38,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:35:38,997 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:35:38,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:35:38,998 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:35:39,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:39,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1054871817, now seen corresponding path program 1 times [2021-11-13 17:35:39,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:39,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540332591] [2021-11-13 17:35:39,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:39,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:39,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:39,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:35:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:39,261 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 17:35:39,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:35:39,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540332591] [2021-11-13 17:35:39,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540332591] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:35:39,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:35:39,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:35:39,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484883423] [2021-11-13 17:35:39,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:35:39,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:35:39,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:35:39,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:35:39,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:35:39,264 INFO L87 Difference]: Start difference. First operand 3521 states and 5048 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:35:41,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:43,408 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:49,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:52,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:52,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:35:52,896 INFO L93 Difference]: Finished difference Result 3759 states and 5483 transitions. [2021-11-13 17:35:52,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:35:52,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-11-13 17:35:52,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:35:52,933 INFO L225 Difference]: With dead ends: 3759 [2021-11-13 17:35:52,933 INFO L226 Difference]: Without dead ends: 3755 [2021-11-13 17:35:52,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:35:52,938 INFO L933 BasicCegarLoop]: 1571 mSDtfsCounter, 1832 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 558 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12612.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.69ms SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13389.96ms IncrementalHoareTripleChecker+Time [2021-11-13 17:35:52,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1990 Valid, 1817 Invalid, 1617 Unknown, 0 Unchecked, 21.69ms Time], IncrementalHoareTripleChecker [558 Valid, 1056 Invalid, 3 Unknown, 0 Unchecked, 13389.96ms Time] [2021-11-13 17:35:52,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2021-11-13 17:35:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3537. [2021-11-13 17:35:53,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3537 states, 2442 states have (on average 1.355036855036855) internal successors, (3309), 2567 states have internal predecessors, (3309), 875 states have call successors, (875), 219 states have call predecessors, (875), 219 states have return successors, (870), 849 states have call predecessors, (870), 867 states have call successors, (870) [2021-11-13 17:35:53,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 5054 transitions. [2021-11-13 17:35:53,161 INFO L78 Accepts]: Start accepts. Automaton has 3537 states and 5054 transitions. Word has length 35 [2021-11-13 17:35:53,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:35:53,161 INFO L470 AbstractCegarLoop]: Abstraction has 3537 states and 5054 transitions. [2021-11-13 17:35:53,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:35:53,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3537 states and 5054 transitions. [2021-11-13 17:35:53,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-13 17:35:53,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:35:53,164 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:35:53,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:35:53,164 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:35:53,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:35:53,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1659366227, now seen corresponding path program 1 times [2021-11-13 17:35:53,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:35:53,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177336284] [2021-11-13 17:35:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:35:53,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:35:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:53,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:35:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:35:53,452 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 17:35:53,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:35:53,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177336284] [2021-11-13 17:35:53,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177336284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:35:53,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:35:53,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:35:53,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92710376] [2021-11-13 17:35:53,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:35:53,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:35:53,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:35:53,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:35:53,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:35:53,455 INFO L87 Difference]: Start difference. First operand 3537 states and 5054 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:35:55,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:35:57,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:04,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:06,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:06,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:36:06,581 INFO L93 Difference]: Finished difference Result 3755 states and 5476 transitions. [2021-11-13 17:36:06,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:36:06,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2021-11-13 17:36:06,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:36:06,611 INFO L225 Difference]: With dead ends: 3755 [2021-11-13 17:36:06,611 INFO L226 Difference]: Without dead ends: 3752 [2021-11-13 17:36:06,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:36:06,614 INFO L933 BasicCegarLoop]: 1563 mSDtfsCounter, 1852 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 538 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12084.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.66ms SdHoareTripleChecker+Time, 538 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12935.20ms IncrementalHoareTripleChecker+Time [2021-11-13 17:36:06,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2038 Valid, 1782 Invalid, 1585 Unknown, 0 Unchecked, 19.66ms Time], IncrementalHoareTripleChecker [538 Valid, 1044 Invalid, 3 Unknown, 0 Unchecked, 12935.20ms Time] [2021-11-13 17:36:06,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2021-11-13 17:36:06,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 3536. [2021-11-13 17:36:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 2442 states have (on average 1.3546273546273546) internal successors, (3308), 2566 states have internal predecessors, (3308), 874 states have call successors, (874), 219 states have call predecessors, (874), 219 states have return successors, (870), 849 states have call predecessors, (870), 867 states have call successors, (870) [2021-11-13 17:36:06,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5052 transitions. [2021-11-13 17:36:06,906 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5052 transitions. Word has length 36 [2021-11-13 17:36:06,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:36:06,907 INFO L470 AbstractCegarLoop]: Abstraction has 3536 states and 5052 transitions. [2021-11-13 17:36:06,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:06,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5052 transitions. [2021-11-13 17:36:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-13 17:36:06,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:36:06,911 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:36:06,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:36:06,911 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:36:06,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:36:06,913 INFO L85 PathProgramCache]: Analyzing trace with hash 98605196, now seen corresponding path program 1 times [2021-11-13 17:36:06,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:36:06,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690060436] [2021-11-13 17:36:06,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:36:06,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:36:06,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:36:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:07,124 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 17:36:07,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:36:07,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690060436] [2021-11-13 17:36:07,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690060436] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:36:07,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:36:07,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:36:07,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949158922] [2021-11-13 17:36:07,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:36:07,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:36:07,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:36:07,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:36:07,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:36:07,127 INFO L87 Difference]: Start difference. First operand 3536 states and 5052 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:09,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:11,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:18,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:18,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:36:18,779 INFO L93 Difference]: Finished difference Result 3754 states and 5474 transitions. [2021-11-13 17:36:18,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:36:18,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-11-13 17:36:18,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:36:18,810 INFO L225 Difference]: With dead ends: 3754 [2021-11-13 17:36:18,811 INFO L226 Difference]: Without dead ends: 3751 [2021-11-13 17:36:18,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:36:18,813 INFO L933 BasicCegarLoop]: 1562 mSDtfsCounter, 1850 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 535 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10730.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.58ms SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11477.31ms IncrementalHoareTripleChecker+Time [2021-11-13 17:36:18,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2035 Valid, 1781 Invalid, 1582 Unknown, 0 Unchecked, 14.58ms Time], IncrementalHoareTripleChecker [535 Valid, 1044 Invalid, 3 Unknown, 0 Unchecked, 11477.31ms Time] [2021-11-13 17:36:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3751 states. [2021-11-13 17:36:19,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3751 to 3535. [2021-11-13 17:36:19,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3535 states, 2442 states have (on average 1.3542178542178542) internal successors, (3307), 2565 states have internal predecessors, (3307), 873 states have call successors, (873), 219 states have call predecessors, (873), 219 states have return successors, (870), 849 states have call predecessors, (870), 867 states have call successors, (870) [2021-11-13 17:36:19,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 5050 transitions. [2021-11-13 17:36:19,056 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 5050 transitions. Word has length 37 [2021-11-13 17:36:19,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:36:19,057 INFO L470 AbstractCegarLoop]: Abstraction has 3535 states and 5050 transitions. [2021-11-13 17:36:19,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:19,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 5050 transitions. [2021-11-13 17:36:19,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 17:36:19,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:36:19,060 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:36:19,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:36:19,061 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:36:19,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:36:19,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1238850672, now seen corresponding path program 1 times [2021-11-13 17:36:19,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:36:19,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961948755] [2021-11-13 17:36:19,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:36:19,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:36:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:19,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:36:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:19,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 17:36:19,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:36:19,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961948755] [2021-11-13 17:36:19,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961948755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:36:19,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:36:19,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:36:19,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405450559] [2021-11-13 17:36:19,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:36:19,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:36:19,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:36:19,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:36:19,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:36:19,278 INFO L87 Difference]: Start difference. First operand 3535 states and 5050 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:21,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:23,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:27,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:30,035 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:32,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:33,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:36:33,021 INFO L93 Difference]: Finished difference Result 3753 states and 5472 transitions. [2021-11-13 17:36:33,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:36:33,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-11-13 17:36:33,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:36:33,048 INFO L225 Difference]: With dead ends: 3753 [2021-11-13 17:36:33,048 INFO L226 Difference]: Without dead ends: 3750 [2021-11-13 17:36:33,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:36:33,051 INFO L933 BasicCegarLoop]: 1559 mSDtfsCounter, 1847 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 534 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12725.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.64ms SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13541.00ms IncrementalHoareTripleChecker+Time [2021-11-13 17:36:33,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2033 Valid, 1776 Invalid, 1581 Unknown, 0 Unchecked, 18.64ms Time], IncrementalHoareTripleChecker [534 Valid, 1044 Invalid, 3 Unknown, 0 Unchecked, 13541.00ms Time] [2021-11-13 17:36:33,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3750 states. [2021-11-13 17:36:33,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3750 to 3534. [2021-11-13 17:36:33,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 2442 states have (on average 1.3538083538083538) internal successors, (3306), 2564 states have internal predecessors, (3306), 872 states have call successors, (872), 219 states have call predecessors, (872), 219 states have return successors, (870), 849 states have call predecessors, (870), 867 states have call successors, (870) [2021-11-13 17:36:33,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 5048 transitions. [2021-11-13 17:36:33,269 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 5048 transitions. Word has length 38 [2021-11-13 17:36:33,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:36:33,270 INFO L470 AbstractCegarLoop]: Abstraction has 3534 states and 5048 transitions. [2021-11-13 17:36:33,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:33,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 5048 transitions. [2021-11-13 17:36:33,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 17:36:33,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:36:33,272 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:36:33,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 17:36:33,272 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:36:33,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:36:33,273 INFO L85 PathProgramCache]: Analyzing trace with hash 249695247, now seen corresponding path program 1 times [2021-11-13 17:36:33,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:36:33,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327279727] [2021-11-13 17:36:33,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:36:33,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:36:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:36:33,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 17:36:33,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:36:33,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327279727] [2021-11-13 17:36:33,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327279727] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:36:33,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:36:33,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:36:33,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065002256] [2021-11-13 17:36:33,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:36:33,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:36:33,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:36:33,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:36:33,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:36:33,483 INFO L87 Difference]: Start difference. First operand 3534 states and 5048 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:35,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:37,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:44,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:47,359 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:48,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:36:48,868 INFO L93 Difference]: Finished difference Result 3752 states and 5470 transitions. [2021-11-13 17:36:48,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:36:48,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2021-11-13 17:36:48,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:36:48,885 INFO L225 Difference]: With dead ends: 3752 [2021-11-13 17:36:48,885 INFO L226 Difference]: Without dead ends: 3749 [2021-11-13 17:36:48,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:36:48,888 INFO L933 BasicCegarLoop]: 1557 mSDtfsCounter, 1844 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 533 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14298.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 1773 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.06ms SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15180.23ms IncrementalHoareTripleChecker+Time [2021-11-13 17:36:48,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2030 Valid, 1773 Invalid, 1580 Unknown, 0 Unchecked, 16.06ms Time], IncrementalHoareTripleChecker [533 Valid, 1043 Invalid, 4 Unknown, 0 Unchecked, 15180.23ms Time] [2021-11-13 17:36:48,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3749 states. [2021-11-13 17:36:49,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3749 to 3533. [2021-11-13 17:36:49,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 2442 states have (on average 1.3533988533988535) internal successors, (3305), 2563 states have internal predecessors, (3305), 871 states have call successors, (871), 219 states have call predecessors, (871), 219 states have return successors, (870), 849 states have call predecessors, (870), 867 states have call successors, (870) [2021-11-13 17:36:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 5046 transitions. [2021-11-13 17:36:49,115 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 5046 transitions. Word has length 39 [2021-11-13 17:36:49,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:36:49,116 INFO L470 AbstractCegarLoop]: Abstraction has 3533 states and 5046 transitions. [2021-11-13 17:36:49,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:49,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 5046 transitions. [2021-11-13 17:36:49,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-13 17:36:49,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:36:49,119 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:36:49,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 17:36:49,120 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:36:49,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:36:49,120 INFO L85 PathProgramCache]: Analyzing trace with hash -850016653, now seen corresponding path program 1 times [2021-11-13 17:36:49,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:36:49,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662869818] [2021-11-13 17:36:49,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:36:49,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:36:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:49,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:36:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:36:49,324 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 17:36:49,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:36:49,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662869818] [2021-11-13 17:36:49,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662869818] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:36:49,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:36:49,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:36:49,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670365909] [2021-11-13 17:36:49,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:36:49,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:36:49,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:36:49,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:36:49,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:36:49,329 INFO L87 Difference]: Start difference. First operand 3533 states and 5046 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:36:51,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:36:53,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:00,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:02,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:02,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:02,997 INFO L93 Difference]: Finished difference Result 3751 states and 5468 transitions. [2021-11-13 17:37:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:37:02,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2021-11-13 17:37:02,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:03,015 INFO L225 Difference]: With dead ends: 3751 [2021-11-13 17:37:03,015 INFO L226 Difference]: Without dead ends: 3748 [2021-11-13 17:37:03,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:37:03,019 INFO L933 BasicCegarLoop]: 1560 mSDtfsCounter, 1841 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 534 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12559.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.25ms SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13405.39ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:03,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2021 Valid, 1781 Invalid, 1581 Unknown, 0 Unchecked, 17.25ms Time], IncrementalHoareTripleChecker [534 Valid, 1044 Invalid, 3 Unknown, 0 Unchecked, 13405.39ms Time] [2021-11-13 17:37:03,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2021-11-13 17:37:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3532. [2021-11-13 17:37:03,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 2442 states have (on average 1.352989352989353) internal successors, (3304), 2562 states have internal predecessors, (3304), 870 states have call successors, (870), 219 states have call predecessors, (870), 219 states have return successors, (870), 849 states have call predecessors, (870), 867 states have call successors, (870) [2021-11-13 17:37:03,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 5044 transitions. [2021-11-13 17:37:03,268 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 5044 transitions. Word has length 40 [2021-11-13 17:37:03,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:03,269 INFO L470 AbstractCegarLoop]: Abstraction has 3532 states and 5044 transitions. [2021-11-13 17:37:03,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:37:03,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 5044 transitions. [2021-11-13 17:37:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-13 17:37:03,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:03,272 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:03,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 17:37:03,273 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:37:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:03,273 INFO L85 PathProgramCache]: Analyzing trace with hash -581342318, now seen corresponding path program 1 times [2021-11-13 17:37:03,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:03,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124796157] [2021-11-13 17:37:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:03,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:03,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:37:03,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 17:37:03,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:03,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124796157] [2021-11-13 17:37:03,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124796157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:03,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:03,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:37:03,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516894971] [2021-11-13 17:37:03,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:03,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:37:03,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:03,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:37:03,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:37:03,503 INFO L87 Difference]: Start difference. First operand 3532 states and 5044 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:37:05,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:07,763 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:13,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:15,808 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:17,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:19,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:20,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:20,122 INFO L93 Difference]: Finished difference Result 3750 states and 5466 transitions. [2021-11-13 17:37:20,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:37:20,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-11-13 17:37:20,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:20,135 INFO L225 Difference]: With dead ends: 3750 [2021-11-13 17:37:20,135 INFO L226 Difference]: Without dead ends: 3747 [2021-11-13 17:37:20,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:37:20,138 INFO L933 BasicCegarLoop]: 1556 mSDtfsCounter, 1833 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 532 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15441.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.69ms SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16374.05ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:20,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2018 Valid, 1775 Invalid, 1578 Unknown, 0 Unchecked, 17.69ms Time], IncrementalHoareTripleChecker [532 Valid, 1041 Invalid, 5 Unknown, 0 Unchecked, 16374.05ms Time] [2021-11-13 17:37:20,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2021-11-13 17:37:20,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3531. [2021-11-13 17:37:20,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3531 states, 2442 states have (on average 1.3525798525798525) internal successors, (3303), 2561 states have internal predecessors, (3303), 869 states have call successors, (869), 219 states have call predecessors, (869), 219 states have return successors, (870), 849 states have call predecessors, (870), 867 states have call successors, (870) [2021-11-13 17:37:20,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 5042 transitions. [2021-11-13 17:37:20,428 INFO L78 Accepts]: Start accepts. Automaton has 3531 states and 5042 transitions. Word has length 41 [2021-11-13 17:37:20,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:20,430 INFO L470 AbstractCegarLoop]: Abstraction has 3531 states and 5042 transitions. [2021-11-13 17:37:20,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:37:20,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3531 states and 5042 transitions. [2021-11-13 17:37:20,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-13 17:37:20,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:20,434 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:20,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 17:37:20,434 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:37:20,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:20,435 INFO L85 PathProgramCache]: Analyzing trace with hash -842367658, now seen corresponding path program 1 times [2021-11-13 17:37:20,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:20,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322122184] [2021-11-13 17:37:20,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:20,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:20,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:37:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:20,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-13 17:37:20,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:20,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322122184] [2021-11-13 17:37:20,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322122184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:20,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:20,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:37:20,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035721651] [2021-11-13 17:37:20,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:20,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 17:37:20,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:20,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 17:37:20,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 17:37:20,665 INFO L87 Difference]: Start difference. First operand 3531 states and 5042 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:37:22,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:24,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:31,629 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:34,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:34,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:34,290 INFO L93 Difference]: Finished difference Result 3749 states and 5464 transitions. [2021-11-13 17:37:34,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 17:37:34,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2021-11-13 17:37:34,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:34,305 INFO L225 Difference]: With dead ends: 3749 [2021-11-13 17:37:34,306 INFO L226 Difference]: Without dead ends: 3718 [2021-11-13 17:37:34,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:37:34,312 INFO L933 BasicCegarLoop]: 1554 mSDtfsCounter, 1835 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 530 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12481.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.53ms SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13365.88ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:34,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2019 Valid, 1770 Invalid, 1575 Unknown, 0 Unchecked, 17.53ms Time], IncrementalHoareTripleChecker [530 Valid, 1042 Invalid, 3 Unknown, 0 Unchecked, 13365.88ms Time] [2021-11-13 17:37:34,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2021-11-13 17:37:34,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 3502. [2021-11-13 17:37:34,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3502 states, 2419 states have (on average 1.3538652335675898) internal successors, (3275), 2537 states have internal predecessors, (3275), 864 states have call successors, (864), 218 states have call predecessors, (864), 218 states have return successors, (866), 845 states have call predecessors, (866), 863 states have call successors, (866) [2021-11-13 17:37:34,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 5005 transitions. [2021-11-13 17:37:34,693 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 5005 transitions. Word has length 42 [2021-11-13 17:37:34,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:34,693 INFO L470 AbstractCegarLoop]: Abstraction has 3502 states and 5005 transitions. [2021-11-13 17:37:34,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 17:37:34,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 5005 transitions. [2021-11-13 17:37:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-13 17:37:34,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:34,705 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:34,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 17:37:34,706 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:37:34,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:34,708 INFO L85 PathProgramCache]: Analyzing trace with hash -583483614, now seen corresponding path program 1 times [2021-11-13 17:37:34,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:34,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712310664] [2021-11-13 17:37:34,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:34,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:34,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-13 17:37:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:34,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 17:37:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:34,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-11-13 17:37:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:34,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-11-13 17:37:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:34,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:34,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:35,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 17:37:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:35,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-13 17:37:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:35,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 17:37:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-13 17:37:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:35,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-13 17:37:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:35,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-13 17:37:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:35,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-13 17:37:35,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:35,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712310664] [2021-11-13 17:37:35,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712310664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:35,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:35,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:37:35,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399060478] [2021-11-13 17:37:35,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:35,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:37:35,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:35,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:37:35,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:37:35,158 INFO L87 Difference]: Start difference. First operand 3502 states and 5005 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 17:37:37,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:39,390 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:53,703 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:55,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:58,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:37:58,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:37:58,354 INFO L93 Difference]: Finished difference Result 7278 states and 10905 transitions. [2021-11-13 17:37:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 17:37:58,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2021-11-13 17:37:58,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:37:58,377 INFO L225 Difference]: With dead ends: 7278 [2021-11-13 17:37:58,377 INFO L226 Difference]: Without dead ends: 3779 [2021-11-13 17:37:58,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:37:58,398 INFO L933 BasicCegarLoop]: 1541 mSDtfsCounter, 1799 mSDsluCounter, 3049 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 1290 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21189.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 4590 SdHoareTripleChecker+Invalid, 4047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.87ms SdHoareTripleChecker+Time, 1290 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22754.95ms IncrementalHoareTripleChecker+Time [2021-11-13 17:37:58,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2025 Valid, 4590 Invalid, 4047 Unknown, 0 Unchecked, 37.87ms Time], IncrementalHoareTripleChecker [1290 Valid, 2753 Invalid, 4 Unknown, 0 Unchecked, 22754.95ms Time] [2021-11-13 17:37:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2021-11-13 17:37:58,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 2587. [2021-11-13 17:37:58,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 1818 states have (on average 1.3674367436743675) internal successors, (2486), 1897 states have internal predecessors, (2486), 605 states have call successors, (605), 163 states have call predecessors, (605), 163 states have return successors, (607), 592 states have call predecessors, (607), 604 states have call successors, (607) [2021-11-13 17:37:58,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 3698 transitions. [2021-11-13 17:37:58,769 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 3698 transitions. Word has length 119 [2021-11-13 17:37:58,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:37:58,769 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 3698 transitions. [2021-11-13 17:37:58,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-13 17:37:58,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 3698 transitions. [2021-11-13 17:37:58,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-13 17:37:58,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:37:58,787 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:37:58,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 17:37:58,788 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 17:37:58,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:37:58,788 INFO L85 PathProgramCache]: Analyzing trace with hash -880432739, now seen corresponding path program 1 times [2021-11-13 17:37:58,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:37:58,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700950396] [2021-11-13 17:37:58,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:37:58,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:37:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-13 17:37:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-11-13 17:37:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-11-13 17:37:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-13 17:37:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-13 17:37:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 17:37:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-13 17:37:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 17:37:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-13 17:37:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 17:37:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-13 17:37:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-13 17:37:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:37:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 17:37:59,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:37:59,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700950396] [2021-11-13 17:37:59,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700950396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:37:59,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:37:59,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-13 17:37:59,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980263359] [2021-11-13 17:37:59,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:37:59,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:37:59,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:37:59,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:37:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:37:59,415 INFO L87 Difference]: Start difference. First operand 2587 states and 3698 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (21), 9 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 17:38:01,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:03,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:05,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:07,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:10,006 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:12,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:14,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:29,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:34,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:37,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:39,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:41,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:43,373 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:44,650 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:46,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:48,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 17:38:50,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:38:50,857 INFO L93 Difference]: Finished difference Result 3730 states and 5845 transitions. [2021-11-13 17:38:50,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 17:38:50,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (21), 9 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2021-11-13 17:38:50,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:38:50,859 INFO L225 Difference]: With dead ends: 3730 [2021-11-13 17:38:50,860 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 17:38:50,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-11-13 17:38:50,884 INFO L933 BasicCegarLoop]: 1521 mSDtfsCounter, 1620 mSDsluCounter, 3754 mSDsCounter, 0 mSdLazyCounter, 5742 mSolverCounterSat, 1266 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47923.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 5275 SdHoareTripleChecker+Invalid, 7022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 58.09ms SdHoareTripleChecker+Time, 1266 IncrementalHoareTripleChecker+Valid, 5742 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50917.05ms IncrementalHoareTripleChecker+Time [2021-11-13 17:38:50,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1795 Valid, 5275 Invalid, 7022 Unknown, 0 Unchecked, 58.09ms Time], IncrementalHoareTripleChecker [1266 Valid, 5742 Invalid, 14 Unknown, 0 Unchecked, 50917.05ms Time] [2021-11-13 17:38:50,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 17:38:50,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 17:38:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:38:50,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 17:38:50,887 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2021-11-13 17:38:50,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:38:50,888 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 17:38:50,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (21), 9 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-13 17:38:50,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 17:38:50,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 17:38:50,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 17:38:50,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 17:38:50,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 17:39:05,271 WARN L227 SmtUtils]: Spent 12.24s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:39:18,284 WARN L227 SmtUtils]: Spent 11.78s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:39:31,389 WARN L227 SmtUtils]: Spent 11.76s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:39:45,800 WARN L227 SmtUtils]: Spent 11.87s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:39:57,510 WARN L227 SmtUtils]: Spent 11.70s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:40:10,928 WARN L227 SmtUtils]: Spent 12.07s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:40:25,077 WARN L227 SmtUtils]: Spent 12.73s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:40:39,131 WARN L227 SmtUtils]: Spent 12.63s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:40:54,315 WARN L227 SmtUtils]: Spent 12.42s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:41:06,701 WARN L227 SmtUtils]: Spent 12.38s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:41:24,826 WARN L227 SmtUtils]: Spent 12.62s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:41:37,340 WARN L227 SmtUtils]: Spent 12.51s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:41:49,779 WARN L227 SmtUtils]: Spent 12.44s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:42:02,442 WARN L227 SmtUtils]: Spent 12.66s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:42:16,265 WARN L227 SmtUtils]: Spent 12.45s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:42:28,568 WARN L227 SmtUtils]: Spent 12.30s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:42:36,149 WARN L227 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:42:43,906 WARN L227 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:42:51,698 WARN L227 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:42:57,731 WARN L227 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:43:03,697 WARN L227 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:43:10,825 WARN L227 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:43:16,724 WARN L227 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:43:23,280 WARN L227 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:43:29,763 WARN L227 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:43:36,168 WARN L227 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:43:42,533 WARN L227 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:43:48,485 WARN L227 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:43:54,394 WARN L227 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:44:00,347 WARN L227 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:44:08,330 WARN L227 SmtUtils]: Spent 6.11s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:44:14,290 WARN L227 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:44:20,835 WARN L227 SmtUtils]: Spent 5.92s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:44:27,073 WARN L227 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:44:41,488 WARN L227 SmtUtils]: Spent 12.20s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:44:48,120 WARN L227 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:44:54,738 WARN L227 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:45:00,665 WARN L227 SmtUtils]: Spent 5.93s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:45:06,324 WARN L227 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:45:12,408 WARN L227 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:45:17,535 WARN L227 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:45:22,665 WARN L227 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:45:33,751 WARN L227 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:45:39,449 WARN L227 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:45:44,597 WARN L227 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:45:49,750 WARN L227 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:45:54,916 WARN L227 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:46:00,100 WARN L227 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:46:06,858 WARN L227 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:46:12,020 WARN L227 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:46:17,305 WARN L227 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:46:23,967 WARN L227 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:46:30,219 WARN L227 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:46:35,696 WARN L227 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:46:41,348 WARN L227 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:46:46,995 WARN L227 SmtUtils]: Spent 5.65s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:46:53,485 WARN L227 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:47:00,099 WARN L227 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:47:06,059 WARN L227 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:47:13,452 WARN L227 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:47:19,627 WARN L227 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:47:32,494 WARN L227 SmtUtils]: Spent 12.84s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:47:45,209 WARN L227 SmtUtils]: Spent 12.71s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:47:55,278 WARN L227 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:48:01,544 WARN L227 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:48:07,894 WARN L227 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-11-13 17:48:14,269 WARN L227 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)