./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b1c027fee61a8058055c949088f7676db617c5b1b19a093573b50c07cbdcbacd --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:27:49,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:27:49,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:27:49,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:27:49,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:27:49,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:27:49,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:27:49,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:27:49,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:27:49,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:27:49,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:27:49,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:27:49,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:27:49,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:27:49,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:27:49,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:27:49,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:27:49,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:27:49,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:27:49,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:27:49,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:27:49,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:27:49,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:27:49,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:27:49,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:27:49,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:27:49,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:27:49,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:27:49,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:27:49,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:27:49,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:27:49,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:27:49,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:27:49,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:27:49,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:27:49,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:27:49,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:27:49,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:27:49,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:27:49,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:27:49,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:27:49,343 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 18:27:49,367 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:27:49,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:27:49,368 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:27:49,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:27:49,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:27:49,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:27:49,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:27:49,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:27:49,370 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:27:49,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:27:49,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:27:49,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:27:49,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:27:49,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:27:49,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:27:49,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:27:49,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:27:49,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:27:49,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:27:49,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:27:49,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:27:49,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:27:49,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:27:49,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:27:49,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:27:49,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:27:49,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:27:49,372 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:27:49,372 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:27:49,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:27:49,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:27:49,372 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_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1c027fee61a8058055c949088f7676db617c5b1b19a093573b50c07cbdcbacd [2021-12-06 18:27:49,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:27:49,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:27:49,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:27:49,556 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:27:49,556 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:27:49,557 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-12-06 18:27:49,599 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/data/bc2b1009a/69c8de2ab3d94c56b556c3ca10fb9d54/FLAG4e05ff7df [2021-12-06 18:27:50,391 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:27:50,392 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-12-06 18:27:50,436 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/data/bc2b1009a/69c8de2ab3d94c56b556c3ca10fb9d54/FLAG4e05ff7df [2021-12-06 18:27:50,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/data/bc2b1009a/69c8de2ab3d94c56b556c3ca10fb9d54 [2021-12-06 18:27:50,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:27:50,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:27:50,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:27:50,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:27:50,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:27:50,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:27:50" (1/1) ... [2021-12-06 18:27:50,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333fab14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:50, skipping insertion in model container [2021-12-06 18:27:50,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:27:50" (1/1) ... [2021-12-06 18:27:50,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:27:50,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:27:57,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i[723056,723069] [2021-12-06 18:27:58,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:27:58,212 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:27:59,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i[723056,723069] [2021-12-06 18:27:59,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:27:59,238 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:27:59,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59 WrapperNode [2021-12-06 18:27:59,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:27:59,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:27:59,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:27:59,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:27:59,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (1/1) ... [2021-12-06 18:27:59,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (1/1) ... [2021-12-06 18:27:59,675 INFO L137 Inliner]: procedures = 905, calls = 9946, calls flagged for inlining = 323, calls inlined = 188, statements flattened = 12629 [2021-12-06 18:27:59,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:27:59,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:27:59,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:27:59,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:27:59,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (1/1) ... [2021-12-06 18:27:59,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (1/1) ... [2021-12-06 18:27:59,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (1/1) ... [2021-12-06 18:27:59,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (1/1) ... [2021-12-06 18:27:59,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (1/1) ... [2021-12-06 18:28:00,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (1/1) ... [2021-12-06 18:28:00,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (1/1) ... [2021-12-06 18:28:00,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:28:00,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:28:00,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:28:00,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:28:00,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (1/1) ... [2021-12-06 18:28:00,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:28:00,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:28:00,165 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:28:00,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c991368-eca3-47b8-bb80-32c748f5f32f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:28:00,195 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_ICM_page [2021-12-06 18:28:00,195 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_ICM_page [2021-12-06 18:28:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-06 18:28:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_device [2021-12-06 18:28:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_device [2021-12-06 18:28:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_status_to_errno [2021-12-06 18:28:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_status_to_errno [2021-12-06 18:28:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icms [2021-12-06 18:28:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icms [2021-12-06 18:28:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-06 18:28:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-06 18:28:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 18:28:00,196 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 18:28:00,196 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-06 18:28:00,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-06 18:28:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_key [2021-12-06 18:28:00,197 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_key [2021-12-06 18:28:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure key_to_hw_index [2021-12-06 18:28:00,197 INFO L138 BoogieDeclarations]: Found implementation of procedure key_to_hw_index [2021-12-06 18:28:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-06 18:28:00,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-06 18:28:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-06 18:28:00,197 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-06 18:28:00,197 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-06 18:28:00,197 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-06 18:28:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unmap_eq_icm [2021-12-06 18:28:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unmap_eq_icm [2021-12-06 18:28:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 18:28:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 18:28:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uarc_virt [2021-12-06 18:28:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uarc_virt [2021-12-06 18:28:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2021-12-06 18:28:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2021-12-06 18:28:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-06 18:28:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-06 18:28:00,198 INFO L130 BoogieDeclarations]: Found specification of procedure ib_destroy_ah [2021-12-06 18:28:00,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_destroy_ah [2021-12-06 18:28:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 18:28:00,199 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 18:28:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_zero [2021-12-06 18:28:00,199 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_zero [2021-12-06 18:28:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_cleanup [2021-12-06 18:28:00,199 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_cleanup [2021-12-06 18:28:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure ib_unregister_device [2021-12-06 18:28:00,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_unregister_device [2021-12-06 18:28:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 18:28:00,199 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 18:28:00,199 INFO L130 BoogieDeclarations]: Found specification of procedure ib_query_port [2021-12-06 18:28:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_query_port [2021-12-06 18:28:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_region [2021-12-06 18:28:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_region [2021-12-06 18:28:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-06 18:28:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-06 18:28:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-12-06 18:28:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-12-06 18:28:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure pci_pcie_cap [2021-12-06 18:28:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_pcie_cap [2021-12-06 18:28:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_CLOSE_IB [2021-12-06 18:28:00,200 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_CLOSE_IB [2021-12-06 18:28:00,200 INFO L130 BoogieDeclarations]: Found specification of procedure clear_page [2021-12-06 18:28:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_page [2021-12-06 18:28:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_pd_alloc [2021-12-06 18:28:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_pd_alloc [2021-12-06 18:28:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:28:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_init_one [2021-12-06 18:28:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_init_one [2021-12-06 18:28:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_create_eq [2021-12-06 18:28:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_create_eq [2021-12-06 18:28:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write_mtt [2021-12-06 18:28:00,201 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write_mtt [2021-12-06 18:28:00,201 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_icm_table [2021-12-06 18:28:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_icm_table [2021-12-06 18:28:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_catas_cleanup [2021-12-06 18:28:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_catas_cleanup [2021-12-06 18:28:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure hw_index_to_key [2021-12-06 18:28:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_index_to_key [2021-12-06 18:28:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-12-06 18:28:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-12-06 18:28:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write64_raw [2021-12-06 18:28:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write64_raw [2021-12-06 18:28:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 18:28:00,202 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 18:28:00,202 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_use_polling [2021-12-06 18:28:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_use_polling [2021-12-06 18:28:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-12-06 18:28:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-12-06 18:28:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icm_table [2021-12-06 18:28:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icm_table [2021-12-06 18:28:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 18:28:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mtt_range [2021-12-06 18:28:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mtt_range [2021-12-06 18:28:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-06 18:28:00,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-06 18:28:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:28:00,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 18:28:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-06 18:28:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-06 18:28:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 18:28:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-06 18:28:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-06 18:28:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uar_free [2021-12-06 18:28:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uar_free [2021-12-06 18:28:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_cleanup [2021-12-06 18:28:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_cleanup [2021-12-06 18:28:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure tavor_eq_req_not [2021-12-06 18:28:00,204 INFO L138 BoogieDeclarations]: Found implementation of procedure tavor_eq_req_not [2021-12-06 18:28:00,204 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-06 18:28:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-12-06 18:28:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2021-12-06 18:28:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2021-12-06 18:28:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 18:28:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 18:28:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_array_cleanup [2021-12-06 18:28:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_array_cleanup [2021-12-06 18:28:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_eq_table [2021-12-06 18:28:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_eq_table [2021-12-06 18:28:00,205 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 18:28:00,205 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 18:28:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:28:00,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:28:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 18:28:00,206 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 18:28:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-06 18:28:00,206 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-06 18:28:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 18:28:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-06 18:28:00,206 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-06 18:28:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_av_table [2021-12-06 18:28:00,206 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_av_table [2021-12-06 18:28:00,206 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_icm [2021-12-06 18:28:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_icm [2021-12-06 18:28:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_alloc_mtt [2021-12-06 18:28:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_alloc_mtt [2021-12-06 18:28:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2021-12-06 18:28:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2021-12-06 18:28:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 18:28:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 18:28:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 18:28:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 18:28:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_is_memfree [2021-12-06 18:28:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_is_memfree [2021-12-06 18:28:00,207 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_eq_req_not [2021-12-06 18:28:00,207 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_eq_req_not [2021-12-06 18:28:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_ICM [2021-12-06 18:28:00,208 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_ICM [2021-12-06 18:28:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 18:28:00,208 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 18:28:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure set_eqe_hw [2021-12-06 18:28:00,208 INFO L138 BoogieDeclarations]: Found implementation of procedure set_eqe_hw [2021-12-06 18:28:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-06 18:28:00,208 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-06 18:28:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-06 18:28:00,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-06 18:28:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:28:00,208 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 18:28:00,208 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 18:28:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_update_rate [2021-12-06 18:28:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_update_rate [2021-12-06 18:28:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 18:28:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_ICM [2021-12-06 18:28:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_ICM [2021-12-06 18:28:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_init [2021-12-06 18:28:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_init [2021-12-06 18:28:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 18:28:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 18:28:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-06 18:28:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-06 18:28:00,209 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_uar_table [2021-12-06 18:28:00,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_uar_table [2021-12-06 18:28:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-06 18:28:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-06 18:28:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-06 18:28:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-06 18:28:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_icm_addr [2021-12-06 18:28:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_icm_addr [2021-12-06 18:28:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-12-06 18:28:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-12-06 18:28:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-06 18:28:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-06 18:28:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-06 18:28:00,210 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-06 18:28:00,210 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-06 18:28:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-06 18:28:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mtt [2021-12-06 18:28:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mtt [2021-12-06 18:28:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure go_bit [2021-12-06 18:28:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure go_bit [2021-12-06 18:28:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:28:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free [2021-12-06 18:28:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free [2021-12-06 18:28:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_zero_bit [2021-12-06 18:28:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_zero_bit [2021-12-06 18:28:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-06 18:28:00,211 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-06 18:28:00,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 18:28:00,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 18:28:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mthca_device_mutex [2021-12-06 18:28:00,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mthca_device_mutex [2021-12-06 18:28:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_SW2HW_MPT [2021-12-06 18:28:00,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_SW2HW_MPT [2021-12-06 18:28:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure pcie_capability_write_word [2021-12-06 18:28:00,212 INFO L138 BoogieDeclarations]: Found implementation of procedure pcie_capability_write_word [2021-12-06 18:28:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_irqs [2021-12-06 18:28:00,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_irqs [2021-12-06 18:28:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_mr_table [2021-12-06 18:28:00,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_mr_table [2021-12-06 18:28:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure __be64_to_cpup [2021-12-06 18:28:00,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __be64_to_cpup [2021-12-06 18:28:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure __buggy_use_of_MTHCA_GET [2021-12-06 18:28:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-12-06 18:28:00,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2021-12-06 18:28:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2021-12-06 18:28:00,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2021-12-06 18:28:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc_notrans [2021-12-06 18:28:00,213 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc_notrans [2021-12-06 18:28:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2021-12-06 18:28:00,213 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2021-12-06 18:28:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-06 18:28:00,213 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-06 18:28:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_put [2021-12-06 18:28:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_put [2021-12-06 18:28:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc [2021-12-06 18:28:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc [2021-12-06 18:28:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write64 [2021-12-06 18:28:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write64 [2021-12-06 18:28:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-06 18:28:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-06 18:28:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_imm [2021-12-06 18:28:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_imm [2021-12-06 18:28:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_mcg_table [2021-12-06 18:28:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_mcg_table [2021-12-06 18:28:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_qp_table [2021-12-06 18:28:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_qp_table [2021-12-06 18:28:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-06 18:28:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-06 18:28:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_device [2021-12-06 18:28:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_device [2021-12-06 18:28:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure ib_unregister_mad_agent [2021-12-06 18:28:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_unregister_mad_agent [2021-12-06 18:28:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-06 18:28:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-06 18:28:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-12-06 18:28:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-12-06 18:28:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_INIT_HCA [2021-12-06 18:28:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_INIT_HCA [2021-12-06 18:28:00,215 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_hw_index_to_key [2021-12-06 18:28:00,215 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_hw_index_to_key [2021-12-06 18:28:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 18:28:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 18:28:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-06 18:28:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-06 18:28:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2021-12-06 18:28:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2021-12-06 18:28:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_cq_table [2021-12-06 18:28:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_cq_table [2021-12-06 18:28:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_cleanup [2021-12-06 18:28:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_cleanup [2021-12-06 18:28:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 18:28:00,216 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 18:28:00,216 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_close_hca [2021-12-06 18:28:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_close_hca [2021-12-06 18:28:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAP_EQ [2021-12-06 18:28:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAP_EQ [2021-12-06 18:28:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure down [2021-12-06 18:28:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2021-12-06 18:28:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-12-06 18:28:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-12-06 18:28:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_MAD_IFC [2021-12-06 18:28:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_MAD_IFC [2021-12-06 18:28:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_map_cmd [2021-12-06 18:28:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_map_cmd [2021-12-06 18:28:00,217 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-06 18:28:00,217 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-06 18:28:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:28:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_mthca_icm_table [2021-12-06 18:28:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_mthca_icm_table [2021-12-06 18:28:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_eq [2021-12-06 18:28:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_eq [2021-12-06 18:28:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_alloc [2021-12-06 18:28:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_alloc [2021-12-06 18:28:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mailbox [2021-12-06 18:28:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mailbox [2021-12-06 18:28:00,218 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-06 18:28:00,218 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-06 18:28:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-12-06 18:28:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-12-06 18:28:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 18:28:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_DISABLE_LAM [2021-12-06 18:28:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_DISABLE_LAM [2021-12-06 18:28:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 18:28:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 18:28:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 18:28:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2021-12-06 18:28:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2021-12-06 18:28:00,219 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_uar_alloc [2021-12-06 18:28:00,219 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_uar_alloc [2021-12-06 18:28:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_empty [2021-12-06 18:28:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_empty [2021-12-06 18:28:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mthca_device_mutex [2021-12-06 18:28:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mthca_device_mutex [2021-12-06 18:28:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_setup_hca [2021-12-06 18:28:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_setup_hca [2021-12-06 18:28:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 18:28:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 18:28:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc [2021-12-06 18:28:00,220 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc [2021-12-06 18:28:00,220 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_CONF_SPECIAL_QP [2021-12-06 18:28:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_CONF_SPECIAL_QP [2021-12-06 18:28:00,221 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_map_reg [2021-12-06 18:28:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_map_reg [2021-12-06 18:28:00,221 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_check_profile_val [2021-12-06 18:28:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_check_profile_val [2021-12-06 18:28:00,221 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_sg [2021-12-06 18:28:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_sg [2021-12-06 18:28:00,221 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_FA [2021-12-06 18:28:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_FA [2021-12-06 18:28:00,221 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_buddy_free [2021-12-06 18:28:00,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_buddy_free [2021-12-06 18:28:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-12-06 18:28:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-12-06 18:28:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_write_mtt_size [2021-12-06 18:28:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_write_mtt_size [2021-12-06 18:28:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure dma_get_cache_alignment [2021-12-06 18:28:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_get_cache_alignment [2021-12-06 18:28:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_free_mr [2021-12-06 18:28:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_free_mr [2021-12-06 18:28:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mailbox [2021-12-06 18:28:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mailbox [2021-12-06 18:28:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-06 18:28:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-06 18:28:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-06 18:28:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-06 18:28:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_dev_lim [2021-12-06 18:28:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_dev_lim [2021-12-06 18:28:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure __roundup_pow_of_two [2021-12-06 18:28:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __roundup_pow_of_two [2021-12-06 18:28:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure tavor_hw_index_to_key [2021-12-06 18:28:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure tavor_hw_index_to_key [2021-12-06 18:28:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_QUERY_FW [2021-12-06 18:28:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_QUERY_FW [2021-12-06 18:28:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure writeq [2021-12-06 18:28:00,223 INFO L138 BoogieDeclarations]: Found implementation of procedure writeq [2021-12-06 18:28:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-06 18:28:00,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-06 18:28:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_SYS_DIS [2021-12-06 18:28:00,224 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_SYS_DIS [2021-12-06 18:28:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_init [2021-12-06 18:28:00,224 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_init [2021-12-06 18:28:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_box [2021-12-06 18:28:00,224 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_box [2021-12-06 18:28:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 18:28:00,224 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-06 18:28:00,224 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-06 18:28:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-06 18:28:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-06 18:28:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_make_profile [2021-12-06 18:28:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_make_profile [2021-12-06 18:28:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure fls64 [2021-12-06 18:28:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure fls64 [2021-12-06 18:28:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-06 18:28:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-06 18:28:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unregister_device [2021-12-06 18:28:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unregister_device [2021-12-06 18:28:00,225 INFO L130 BoogieDeclarations]: Found specification of procedure arbel_key_to_hw_index [2021-12-06 18:28:00,225 INFO L138 BoogieDeclarations]: Found implementation of procedure arbel_key_to_hw_index [2021-12-06 18:28:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-12-06 18:28:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-12-06 18:28:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-06 18:28:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-06 18:28:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-12-06 18:28:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-12-06 18:28:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-12-06 18:28:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-12-06 18:28:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-12-06 18:28:00,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-12-06 18:28:00,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 18:28:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_find [2021-12-06 18:28:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_find [2021-12-06 18:28:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_icm [2021-12-06 18:28:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_icm [2021-12-06 18:28:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_icm_size [2021-12-06 18:28:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_icm_size [2021-12-06 18:28:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-06 18:28:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-06 18:28:00,227 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-06 18:28:00,227 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-06 18:28:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_srq_table [2021-12-06 18:28:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_srq_table [2021-12-06 18:28:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_poll [2021-12-06 18:28:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_poll [2021-12-06 18:28:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_UNMAP_ICM_AUX [2021-12-06 18:28:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_UNMAP_ICM_AUX [2021-12-06 18:28:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2021-12-06 18:28:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2021-12-06 18:28:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_wait [2021-12-06 18:28:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_wait [2021-12-06 18:28:00,228 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_mr_alloc_phys [2021-12-06 18:28:00,228 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_mr_alloc_phys [2021-12-06 18:28:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_sg [2021-12-06 18:28:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_sg [2021-12-06 18:28:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 18:28:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 18:28:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure get_eqe [2021-12-06 18:28:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eqe [2021-12-06 18:28:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure async_mask [2021-12-06 18:28:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure async_mask [2021-12-06 18:28:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_array_init [2021-12-06 18:28:00,229 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_array_init [2021-12-06 18:28:00,229 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_pd_free [2021-12-06 18:28:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_pd_free [2021-12-06 18:28:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd [2021-12-06 18:28:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd [2021-12-06 18:28:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-06 18:28:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-06 18:28:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_table_get [2021-12-06 18:28:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_table_get [2021-12-06 18:28:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure __mthca_remove_one [2021-12-06 18:28:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __mthca_remove_one [2021-12-06 18:28:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-06 18:28:00,230 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-06 18:28:00,230 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cleanup_pd_table [2021-12-06 18:28:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cleanup_pd_table [2021-12-06 18:28:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure init_query_mad [2021-12-06 18:28:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure init_query_mad [2021-12-06 18:28:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2021-12-06 18:28:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2021-12-06 18:28:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_mthca_icm_table [2021-12-06 18:28:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_mthca_icm_table [2021-12-06 18:28:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_cmd_post [2021-12-06 18:28:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_cmd_post [2021-12-06 18:28:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 18:28:00,231 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 18:28:00,231 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-06 18:28:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-06 18:28:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:28:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_unmap_eq_regs [2021-12-06 18:28:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_unmap_eq_regs [2021-12-06 18:28:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure __buggy_use_of_MTHCA_PUT [2021-12-06 18:28:00,232 INFO L130 BoogieDeclarations]: Found specification of procedure mthca_alloc_mtt [2021-12-06 18:28:00,232 INFO L138 BoogieDeclarations]: Found implementation of procedure mthca_alloc_mtt [2021-12-06 18:28:00,964 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:28:00,968 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:28:35,557 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:28:35,591 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:28:35,591 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:28:35,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:28:35 BoogieIcfgContainer [2021-12-06 18:28:35,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:28:35,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:28:35,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:28:35,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:28:35,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:27:50" (1/3) ... [2021-12-06 18:28:35,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676d998b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:28:35, skipping insertion in model container [2021-12-06 18:28:35,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:27:59" (2/3) ... [2021-12-06 18:28:35,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676d998b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:28:35, skipping insertion in model container [2021-12-06 18:28:35,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:28:35" (3/3) ... [2021-12-06 18:28:35,605 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--infiniband--hw--mthca--ib_mthca.ko-main.cil.out.i [2021-12-06 18:28:35,609 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:28:35,609 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:28:35,659 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:28:35,665 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:28:35,665 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 18:28:35,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 4985 states, 3560 states have (on average 1.3747191011235955) internal successors, (4894), 3629 states have internal predecessors, (4894), 1213 states have call successors, (1213), 210 states have call predecessors, (1213), 210 states have return successors, (1213), 1213 states have call predecessors, (1213), 1213 states have call successors, (1213) [2021-12-06 18:28:35,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-06 18:28:35,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:28:35,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:28:35,788 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:28:35,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:28:35,794 INFO L85 PathProgramCache]: Analyzing trace with hash -717393883, now seen corresponding path program 1 times [2021-12-06 18:28:35,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:28:35,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689828778] [2021-12-06 18:28:35,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:28:35,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:28:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:28:36,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:28:36,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689828778] [2021-12-06 18:28:36,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689828778] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:28:36,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:28:36,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:28:36,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285399967] [2021-12-06 18:28:36,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:28:36,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:28:36,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:28:36,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:28:36,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:28:36,338 INFO L87 Difference]: Start difference. First operand has 4985 states, 3560 states have (on average 1.3747191011235955) internal successors, (4894), 3629 states have internal predecessors, (4894), 1213 states have call successors, (1213), 210 states have call predecessors, (1213), 210 states have return successors, (1213), 1213 states have call predecessors, (1213), 1213 states have call successors, (1213) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:28:36,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:28:36,749 INFO L93 Difference]: Finished difference Result 10089 states and 15078 transitions. [2021-12-06 18:28:36,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:28:36,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-06 18:28:36,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:28:36,801 INFO L225 Difference]: With dead ends: 10089 [2021-12-06 18:28:36,802 INFO L226 Difference]: Without dead ends: 5081 [2021-12-06 18:28:36,836 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 [2021-12-06 18:28:36,839 INFO L933 BasicCegarLoop]: 7283 mSDtfsCounter, 198 mSDsluCounter, 7256 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 14539 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:28:36,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 14539 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:28:36,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5081 states. [2021-12-06 18:28:37,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5081 to 5051. [2021-12-06 18:28:37,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5051 states, 3610 states have (on average 1.3731301939058171) internal successors, (4957), 3678 states have internal predecessors, (4957), 1225 states have call successors, (1225), 216 states have call predecessors, (1225), 215 states have return successors, (1206), 1205 states have call predecessors, (1206), 1206 states have call successors, (1206) [2021-12-06 18:28:37,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5051 states to 5051 states and 7388 transitions. [2021-12-06 18:28:37,115 INFO L78 Accepts]: Start accepts. Automaton has 5051 states and 7388 transitions. Word has length 18 [2021-12-06 18:28:37,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:28:37,115 INFO L470 AbstractCegarLoop]: Abstraction has 5051 states and 7388 transitions. [2021-12-06 18:28:37,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:28:37,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5051 states and 7388 transitions. [2021-12-06 18:28:37,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-06 18:28:37,118 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:28:37,118 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] [2021-12-06 18:28:37,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:28:37,118 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:28:37,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:28:37,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1416412498, now seen corresponding path program 1 times [2021-12-06 18:28:37,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:28:37,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730187900] [2021-12-06 18:28:37,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:28:37,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:28:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:37,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:28:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:28:37,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:28:37,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730187900] [2021-12-06 18:28:37,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730187900] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:28:37,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:28:37,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:28:37,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860806577] [2021-12-06 18:28:37,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:28:37,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:28:37,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:28:37,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:28:37,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:28:37,320 INFO L87 Difference]: Start difference. First operand 5051 states and 7388 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 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) [2021-12-06 18:28:37,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:28:37,764 INFO L93 Difference]: Finished difference Result 15033 states and 21994 transitions. [2021-12-06 18:28:37,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:28:37,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 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 21 [2021-12-06 18:28:37,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:28:37,826 INFO L225 Difference]: With dead ends: 15033 [2021-12-06 18:28:37,827 INFO L226 Difference]: Without dead ends: 9985 [2021-12-06 18:28:37,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:28:37,853 INFO L933 BasicCegarLoop]: 14253 mSDtfsCounter, 7171 mSDsluCounter, 7166 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7171 SdHoareTripleChecker+Valid, 21419 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:28:37,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7171 Valid, 21419 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:28:37,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2021-12-06 18:28:38,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 9971. [2021-12-06 18:28:38,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9971 states, 7144 states have (on average 1.3722004479283314) internal successors, (9803), 7260 states have internal predecessors, (9803), 2403 states have call successors, (2403), 424 states have call predecessors, (2403), 423 states have return successors, (2384), 2384 states have call predecessors, (2384), 2384 states have call successors, (2384) [2021-12-06 18:28:38,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9971 states to 9971 states and 14590 transitions. [2021-12-06 18:28:38,284 INFO L78 Accepts]: Start accepts. Automaton has 9971 states and 14590 transitions. Word has length 21 [2021-12-06 18:28:38,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:28:38,285 INFO L470 AbstractCegarLoop]: Abstraction has 9971 states and 14590 transitions. [2021-12-06 18:28:38,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 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) [2021-12-06 18:28:38,285 INFO L276 IsEmpty]: Start isEmpty. Operand 9971 states and 14590 transitions. [2021-12-06 18:28:38,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 18:28:38,288 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:28:38,288 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:28:38,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:28:38,289 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:28:38,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:28:38,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1846771227, now seen corresponding path program 1 times [2021-12-06 18:28:38,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:28:38,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036214213] [2021-12-06 18:28:38,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:28:38,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:28:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:28:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:28:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:28:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:28:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:28:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:28:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:28:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:28:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:28:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:28:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:28:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:28:38,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:28:38,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036214213] [2021-12-06 18:28:38,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036214213] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:28:38,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:28:38,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:28:38,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112099611] [2021-12-06 18:28:38,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:28:38,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:28:38,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:28:38,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:28:38,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:28:38,720 INFO L87 Difference]: Start difference. First operand 9971 states and 14590 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 18:28:41,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:28:43,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:28:46,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:28:50,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:28:55,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:28:59,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:29:01,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:07,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:10,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:10,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:29:10,400 INFO L93 Difference]: Finished difference Result 22028 states and 32190 transitions. [2021-12-06 18:29:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:29:10,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2021-12-06 18:29:10,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:29:10,481 INFO L225 Difference]: With dead ends: 22028 [2021-12-06 18:29:10,481 INFO L226 Difference]: Without dead ends: 12060 [2021-12-06 18:29:10,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:29:10,519 INFO L933 BasicCegarLoop]: 6959 mSDtfsCounter, 7536 mSDsluCounter, 3634 mSDsCounter, 0 mSdLazyCounter, 3194 mSolverCounterSat, 2394 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8470 SdHoareTripleChecker+Valid, 10593 SdHoareTripleChecker+Invalid, 5597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2394 IncrementalHoareTripleChecker+Valid, 3194 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:29:10,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8470 Valid, 10593 Invalid, 5597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2394 Valid, 3194 Invalid, 9 Unknown, 0 Unchecked, 31.1s Time] [2021-12-06 18:29:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12060 states. [2021-12-06 18:29:10,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12060 to 11126. [2021-12-06 18:29:10,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11126 states, 7898 states have (on average 1.3543935173461636) internal successors, (10697), 8030 states have internal predecessors, (10697), 2677 states have call successors, (2677), 551 states have call predecessors, (2677), 550 states have return successors, (2658), 2656 states have call predecessors, (2658), 2658 states have call successors, (2658) [2021-12-06 18:29:10,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11126 states to 11126 states and 16032 transitions. [2021-12-06 18:29:10,975 INFO L78 Accepts]: Start accepts. Automaton has 11126 states and 16032 transitions. Word has length 91 [2021-12-06 18:29:10,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:29:10,976 INFO L470 AbstractCegarLoop]: Abstraction has 11126 states and 16032 transitions. [2021-12-06 18:29:10,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 18:29:10,976 INFO L276 IsEmpty]: Start isEmpty. Operand 11126 states and 16032 transitions. [2021-12-06 18:29:10,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 18:29:10,978 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:29:10,979 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:29:10,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:29:10,979 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:29:10,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:29:10,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1627916509, now seen corresponding path program 1 times [2021-12-06 18:29:10,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:29:10,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794875833] [2021-12-06 18:29:10,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:29:10,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:29:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:29:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:29:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:29:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:29:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:29:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:29:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:29:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:29:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:29:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:29:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:11,366 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:29:11,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:29:11,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794875833] [2021-12-06 18:29:11,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794875833] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:29:11,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:29:11,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:29:11,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751839585] [2021-12-06 18:29:11,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:29:11,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:29:11,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:29:11,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:29:11,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:29:11,368 INFO L87 Difference]: Start difference. First operand 11126 states and 16032 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:29:15,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:17,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:22,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:26,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:29,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:33,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:29:35,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:42,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:45,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:45,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:29:45,586 INFO L93 Difference]: Finished difference Result 23536 states and 34220 transitions. [2021-12-06 18:29:45,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:29:45,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 91 [2021-12-06 18:29:45,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:29:45,630 INFO L225 Difference]: With dead ends: 23536 [2021-12-06 18:29:45,631 INFO L226 Difference]: Without dead ends: 12413 [2021-12-06 18:29:45,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:29:45,655 INFO L933 BasicCegarLoop]: 7092 mSDtfsCounter, 1398 mSDsluCounter, 16133 mSDsCounter, 0 mSdLazyCounter, 4874 mSolverCounterSat, 1329 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 23225 SdHoareTripleChecker+Invalid, 6212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1329 IncrementalHoareTripleChecker+Valid, 4874 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:29:45,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1706 Valid, 23225 Invalid, 6212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1329 Valid, 4874 Invalid, 9 Unknown, 0 Unchecked, 33.6s Time] [2021-12-06 18:29:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12413 states. [2021-12-06 18:29:45,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12413 to 11130. [2021-12-06 18:29:45,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11130 states, 7902 states have (on average 1.3542141230068336) internal successors, (10701), 8034 states have internal predecessors, (10701), 2677 states have call successors, (2677), 551 states have call predecessors, (2677), 550 states have return successors, (2658), 2656 states have call predecessors, (2658), 2658 states have call successors, (2658) [2021-12-06 18:29:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11130 states to 11130 states and 16036 transitions. [2021-12-06 18:29:46,016 INFO L78 Accepts]: Start accepts. Automaton has 11130 states and 16036 transitions. Word has length 91 [2021-12-06 18:29:46,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:29:46,017 INFO L470 AbstractCegarLoop]: Abstraction has 11130 states and 16036 transitions. [2021-12-06 18:29:46,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:29:46,017 INFO L276 IsEmpty]: Start isEmpty. Operand 11130 states and 16036 transitions. [2021-12-06 18:29:46,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 18:29:46,018 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:29:46,018 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:29:46,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:29:46,018 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:29:46,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:29:46,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1234889499, now seen corresponding path program 1 times [2021-12-06 18:29:46,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:29:46,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079600848] [2021-12-06 18:29:46,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:29:46,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:29:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:29:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:29:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:29:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:29:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:29:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:29:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:29:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:29:46,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:29:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:29:46,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:29:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:29:46,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:29:46,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079600848] [2021-12-06 18:29:46,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079600848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:29:46,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:29:46,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:29:46,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379584721] [2021-12-06 18:29:46,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:29:46,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:29:46,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:29:46,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:29:46,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:29:46,324 INFO L87 Difference]: Start difference. First operand 11130 states and 16036 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:29:49,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:51,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:55,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:29:59,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:02,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:04,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:30:06,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:13,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:13,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:30:13,953 INFO L93 Difference]: Finished difference Result 12208 states and 17812 transitions. [2021-12-06 18:30:13,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:30:13,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 91 [2021-12-06 18:30:13,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:30:13,989 INFO L225 Difference]: With dead ends: 12208 [2021-12-06 18:30:13,990 INFO L226 Difference]: Without dead ends: 12179 [2021-12-06 18:30:13,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:30:13,996 INFO L933 BasicCegarLoop]: 6866 mSDtfsCounter, 7434 mSDsluCounter, 3233 mSDsCounter, 0 mSdLazyCounter, 2610 mSolverCounterSat, 2362 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8269 SdHoareTripleChecker+Valid, 10099 SdHoareTripleChecker+Invalid, 4980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2362 IncrementalHoareTripleChecker+Valid, 2610 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2021-12-06 18:30:13,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8269 Valid, 10099 Invalid, 4980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2362 Valid, 2610 Invalid, 8 Unknown, 0 Unchecked, 27.2s Time] [2021-12-06 18:30:14,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12179 states. [2021-12-06 18:30:14,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12179 to 11142. [2021-12-06 18:30:14,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11142 states, 7910 states have (on average 1.3537294563843236) internal successors, (10708), 8042 states have internal predecessors, (10708), 2677 states have call successors, (2677), 555 states have call predecessors, (2677), 554 states have return successors, (2658), 2656 states have call predecessors, (2658), 2658 states have call successors, (2658) [2021-12-06 18:30:14,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11142 states to 11142 states and 16043 transitions. [2021-12-06 18:30:14,392 INFO L78 Accepts]: Start accepts. Automaton has 11142 states and 16043 transitions. Word has length 91 [2021-12-06 18:30:14,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:30:14,393 INFO L470 AbstractCegarLoop]: Abstraction has 11142 states and 16043 transitions. [2021-12-06 18:30:14,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:30:14,393 INFO L276 IsEmpty]: Start isEmpty. Operand 11142 states and 16043 transitions. [2021-12-06 18:30:14,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 18:30:14,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:30:14,394 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:30:14,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:30:14,394 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:30:14,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:30:14,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1177631197, now seen corresponding path program 1 times [2021-12-06 18:30:14,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:30:14,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993988489] [2021-12-06 18:30:14,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:30:14,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:30:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:30:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:30:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:30:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:30:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:30:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:30:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:30:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:30:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:30:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:30:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:14,730 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:30:14,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:30:14,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993988489] [2021-12-06 18:30:14,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993988489] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:30:14,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:30:14,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:30:14,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045795904] [2021-12-06 18:30:14,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:30:14,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:30:14,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:30:14,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:30:14,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:30:14,732 INFO L87 Difference]: Start difference. First operand 11142 states and 16043 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:30:17,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:19,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:22,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:25,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:30,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:33,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:30:35,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:41,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:42,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:30:42,317 INFO L93 Difference]: Finished difference Result 12176 states and 17717 transitions. [2021-12-06 18:30:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:30:42,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 91 [2021-12-06 18:30:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:30:42,351 INFO L225 Difference]: With dead ends: 12176 [2021-12-06 18:30:42,351 INFO L226 Difference]: Without dead ends: 12173 [2021-12-06 18:30:42,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:30:42,356 INFO L933 BasicCegarLoop]: 6839 mSDtfsCounter, 7298 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 2701 mSolverCounterSat, 2289 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8132 SdHoareTripleChecker+Valid, 10108 SdHoareTripleChecker+Invalid, 4998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2289 IncrementalHoareTripleChecker+Valid, 2701 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:30:42,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8132 Valid, 10108 Invalid, 4998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2289 Valid, 2701 Invalid, 8 Unknown, 0 Unchecked, 27.1s Time] [2021-12-06 18:30:42,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12173 states. [2021-12-06 18:30:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12173 to 11229. [2021-12-06 18:30:42,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11229 states, 7972 states have (on average 1.3518564977420973) internal successors, (10777), 8103 states have internal predecessors, (10777), 2682 states have call successors, (2682), 575 states have call predecessors, (2682), 574 states have return successors, (2664), 2662 states have call predecessors, (2664), 2664 states have call successors, (2664) [2021-12-06 18:30:42,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11229 states to 11229 states and 16123 transitions. [2021-12-06 18:30:42,776 INFO L78 Accepts]: Start accepts. Automaton has 11229 states and 16123 transitions. Word has length 91 [2021-12-06 18:30:42,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:30:42,777 INFO L470 AbstractCegarLoop]: Abstraction has 11229 states and 16123 transitions. [2021-12-06 18:30:42,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:30:42,777 INFO L276 IsEmpty]: Start isEmpty. Operand 11229 states and 16123 transitions. [2021-12-06 18:30:42,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-06 18:30:42,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:30:42,778 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:30:42,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:30:42,778 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:30:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:30:42,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2146053021, now seen corresponding path program 1 times [2021-12-06 18:30:42,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:30:42,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066815174] [2021-12-06 18:30:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:30:42,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:30:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:42,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:30:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:42,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:30:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:42,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:30:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:43,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:30:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:43,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:30:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:43,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:30:43,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:43,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:30:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:43,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:30:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:30:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:43,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:30:43,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:30:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:30:43,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:30:43,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066815174] [2021-12-06 18:30:43,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066815174] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:30:43,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:30:43,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:30:43,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499880871] [2021-12-06 18:30:43,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:30:43,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:30:43,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:30:43,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:30:43,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:30:43,083 INFO L87 Difference]: Start difference. First operand 11229 states and 16123 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:30:46,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:48,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:50,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:30:54,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:00,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:03,499 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:31:05,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:10,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:31:10,760 INFO L93 Difference]: Finished difference Result 12233 states and 17793 transitions. [2021-12-06 18:31:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:31:10,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 92 [2021-12-06 18:31:10,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:31:10,793 INFO L225 Difference]: With dead ends: 12233 [2021-12-06 18:31:10,793 INFO L226 Difference]: Without dead ends: 12230 [2021-12-06 18:31:10,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:31:10,798 INFO L933 BasicCegarLoop]: 6916 mSDtfsCounter, 7680 mSDsluCounter, 3537 mSDsCounter, 0 mSdLazyCounter, 3148 mSolverCounterSat, 2479 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8613 SdHoareTripleChecker+Valid, 10453 SdHoareTripleChecker+Invalid, 5634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2479 IncrementalHoareTripleChecker+Valid, 3148 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:31:10,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8613 Valid, 10453 Invalid, 5634 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2479 Valid, 3148 Invalid, 7 Unknown, 0 Unchecked, 27.1s Time] [2021-12-06 18:31:10,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12230 states. [2021-12-06 18:31:11,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12230 to 11228. [2021-12-06 18:31:11,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11228 states, 7972 states have (on average 1.3517310587054692) internal successors, (10776), 8102 states have internal predecessors, (10776), 2681 states have call successors, (2681), 575 states have call predecessors, (2681), 574 states have return successors, (2664), 2662 states have call predecessors, (2664), 2664 states have call successors, (2664) [2021-12-06 18:31:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11228 states to 11228 states and 16121 transitions. [2021-12-06 18:31:11,200 INFO L78 Accepts]: Start accepts. Automaton has 11228 states and 16121 transitions. Word has length 92 [2021-12-06 18:31:11,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:31:11,200 INFO L470 AbstractCegarLoop]: Abstraction has 11228 states and 16121 transitions. [2021-12-06 18:31:11,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:31:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 11228 states and 16121 transitions. [2021-12-06 18:31:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-06 18:31:11,201 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:31:11,201 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:31:11,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:31:11,201 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:31:11,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:31:11,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2101053542, now seen corresponding path program 1 times [2021-12-06 18:31:11,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:31:11,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949703429] [2021-12-06 18:31:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:31:11,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:31:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:31:11,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:31:11,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:31:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:31:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:31:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:31:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:31:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:31:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:31:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:31:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:11,493 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:31:11,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:31:11,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949703429] [2021-12-06 18:31:11,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949703429] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:31:11,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:31:11,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:31:11,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581422125] [2021-12-06 18:31:11,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:31:11,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:31:11,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:31:11,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:31:11,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:31:11,495 INFO L87 Difference]: Start difference. First operand 11228 states and 16121 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:31:14,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:16,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:20,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:24,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:26,517 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:29,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:31:31,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:38,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:41,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:45,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:48,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:50,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:53,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:31:53,130 INFO L93 Difference]: Finished difference Result 18062 states and 26050 transitions. [2021-12-06 18:31:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:31:53,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 93 [2021-12-06 18:31:53,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:31:53,173 INFO L225 Difference]: With dead ends: 18062 [2021-12-06 18:31:53,173 INFO L226 Difference]: Without dead ends: 18058 [2021-12-06 18:31:53,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:31:53,179 INFO L933 BasicCegarLoop]: 7358 mSDtfsCounter, 8232 mSDsluCounter, 6043 mSDsCounter, 0 mSdLazyCounter, 4229 mSolverCounterSat, 2895 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9249 SdHoareTripleChecker+Valid, 13401 SdHoareTripleChecker+Invalid, 7134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2895 IncrementalHoareTripleChecker+Valid, 4229 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:31:53,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9249 Valid, 13401 Invalid, 7134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2895 Valid, 4229 Invalid, 10 Unknown, 0 Unchecked, 40.8s Time] [2021-12-06 18:31:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18058 states. [2021-12-06 18:31:53,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18058 to 16962. [2021-12-06 18:31:53,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16962 states, 11960 states have (on average 1.3341137123745819) internal successors, (15956), 12244 states have internal predecessors, (15956), 3983 states have call successors, (3983), 993 states have call predecessors, (3983), 1018 states have return successors, (4260), 3894 states have call predecessors, (4260), 3966 states have call successors, (4260) [2021-12-06 18:31:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16962 states to 16962 states and 24199 transitions. [2021-12-06 18:31:53,770 INFO L78 Accepts]: Start accepts. Automaton has 16962 states and 24199 transitions. Word has length 93 [2021-12-06 18:31:53,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:31:53,771 INFO L470 AbstractCegarLoop]: Abstraction has 16962 states and 24199 transitions. [2021-12-06 18:31:53,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:31:53,771 INFO L276 IsEmpty]: Start isEmpty. Operand 16962 states and 24199 transitions. [2021-12-06 18:31:53,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-06 18:31:53,772 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:31:53,772 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:31:53,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 18:31:53,772 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:31:53,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:31:53,772 INFO L85 PathProgramCache]: Analyzing trace with hash 706074560, now seen corresponding path program 1 times [2021-12-06 18:31:53,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:31:53,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060375462] [2021-12-06 18:31:53,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:31:53,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:31:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:53,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:31:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:53,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:31:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:53,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:31:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:31:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:54,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:31:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:54,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:31:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:31:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:54,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:31:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:54,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:31:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:31:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:31:54,091 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:31:54,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:31:54,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060375462] [2021-12-06 18:31:54,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060375462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:31:54,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:31:54,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:31:54,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086080751] [2021-12-06 18:31:54,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:31:54,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:31:54,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:31:54,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:31:54,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:31:54,093 INFO L87 Difference]: Start difference. First operand 16962 states and 24199 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:31:56,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:31:59,104 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:01,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:05,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:08,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:11,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:14,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:32:16,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:23,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:26,402 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:26,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:32:26,753 INFO L93 Difference]: Finished difference Result 18048 states and 26017 transitions. [2021-12-06 18:32:26,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:32:26,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 94 [2021-12-06 18:32:26,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:32:26,788 INFO L225 Difference]: With dead ends: 18048 [2021-12-06 18:32:26,789 INFO L226 Difference]: Without dead ends: 18045 [2021-12-06 18:32:26,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:32:26,794 INFO L933 BasicCegarLoop]: 6936 mSDtfsCounter, 7530 mSDsluCounter, 3632 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 2397 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8461 SdHoareTripleChecker+Valid, 10568 SdHoareTripleChecker+Invalid, 5602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2397 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2021-12-06 18:32:26,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8461 Valid, 10568 Invalid, 5602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2397 Valid, 3197 Invalid, 8 Unknown, 0 Unchecked, 31.9s Time] [2021-12-06 18:32:26,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18045 states. [2021-12-06 18:32:27,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18045 to 16937. [2021-12-06 18:32:27,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16937 states, 11944 states have (on average 1.3341426657736102) internal successors, (15935), 12227 states have internal predecessors, (15935), 3976 states have call successors, (3976), 993 states have call predecessors, (3976), 1016 states have return successors, (4234), 3886 states have call predecessors, (4234), 3960 states have call successors, (4234) [2021-12-06 18:32:27,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16937 states to 16937 states and 24145 transitions. [2021-12-06 18:32:27,371 INFO L78 Accepts]: Start accepts. Automaton has 16937 states and 24145 transitions. Word has length 94 [2021-12-06 18:32:27,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:32:27,371 INFO L470 AbstractCegarLoop]: Abstraction has 16937 states and 24145 transitions. [2021-12-06 18:32:27,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:32:27,371 INFO L276 IsEmpty]: Start isEmpty. Operand 16937 states and 24145 transitions. [2021-12-06 18:32:27,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-06 18:32:27,372 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:32:27,372 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:32:27,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 18:32:27,373 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:32:27,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:32:27,373 INFO L85 PathProgramCache]: Analyzing trace with hash 411403945, now seen corresponding path program 1 times [2021-12-06 18:32:27,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:32:27,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005944731] [2021-12-06 18:32:27,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:32:27,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:32:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:32:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:32:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:32:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:32:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:32:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:32:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:32:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:32:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:32:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:32:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:32:27,652 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:32:27,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:32:27,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005944731] [2021-12-06 18:32:27,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005944731] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:32:27,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:32:27,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:32:27,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554262348] [2021-12-06 18:32:27,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:32:27,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:32:27,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:32:27,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:32:27,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:32:27,653 INFO L87 Difference]: Start difference. First operand 16937 states and 24145 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:32:30,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:32,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:35,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:38,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:42,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:47,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:50,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:32:52,441 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:32:59,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:02,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:02,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:33:02,480 INFO L93 Difference]: Finished difference Result 18165 states and 26169 transitions. [2021-12-06 18:33:02,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:33:02,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 95 [2021-12-06 18:33:02,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:33:02,518 INFO L225 Difference]: With dead ends: 18165 [2021-12-06 18:33:02,518 INFO L226 Difference]: Without dead ends: 18161 [2021-12-06 18:33:02,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:33:02,526 INFO L933 BasicCegarLoop]: 6844 mSDtfsCounter, 1438 mSDsluCounter, 9145 mSDsCounter, 0 mSdLazyCounter, 3712 mSolverCounterSat, 1347 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1731 SdHoareTripleChecker+Valid, 15989 SdHoareTripleChecker+Invalid, 5069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1347 IncrementalHoareTripleChecker+Valid, 3712 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:33:02,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1731 Valid, 15989 Invalid, 5069 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1347 Valid, 3712 Invalid, 10 Unknown, 0 Unchecked, 34.1s Time] [2021-12-06 18:33:02,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18161 states. [2021-12-06 18:33:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18161 to 17043. [2021-12-06 18:33:03,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17043 states, 12020 states have (on average 1.3324459234608985) internal successors, (16016), 12303 states have internal predecessors, (16016), 3994 states have call successors, (3994), 1003 states have call predecessors, (3994), 1028 states have return successors, (4258), 3906 states have call predecessors, (4258), 3980 states have call successors, (4258) [2021-12-06 18:33:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17043 states to 17043 states and 24268 transitions. [2021-12-06 18:33:03,138 INFO L78 Accepts]: Start accepts. Automaton has 17043 states and 24268 transitions. Word has length 95 [2021-12-06 18:33:03,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:33:03,138 INFO L470 AbstractCegarLoop]: Abstraction has 17043 states and 24268 transitions. [2021-12-06 18:33:03,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:33:03,138 INFO L276 IsEmpty]: Start isEmpty. Operand 17043 states and 24268 transitions. [2021-12-06 18:33:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 18:33:03,139 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:33:03,139 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:33:03,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 18:33:03,139 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:33:03,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:33:03,140 INFO L85 PathProgramCache]: Analyzing trace with hash -133445661, now seen corresponding path program 1 times [2021-12-06 18:33:03,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:33:03,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872193507] [2021-12-06 18:33:03,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:33:03,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:33:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:33:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:33:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:33:03,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:33:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:33:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:33:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:33:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:33:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:33:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:33:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:03,401 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:33:03,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:33:03,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872193507] [2021-12-06 18:33:03,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872193507] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:33:03,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:33:03,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:33:03,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244976255] [2021-12-06 18:33:03,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:33:03,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:33:03,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:33:03,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:33:03,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:33:03,402 INFO L87 Difference]: Start difference. First operand 17043 states and 24268 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:33:06,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:08,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:12,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:17,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:19,961 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:22,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:33:24,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:31,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:32,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:33:32,316 INFO L93 Difference]: Finished difference Result 18165 states and 26162 transitions. [2021-12-06 18:33:32,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:33:32,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 96 [2021-12-06 18:33:32,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:33:32,351 INFO L225 Difference]: With dead ends: 18165 [2021-12-06 18:33:32,351 INFO L226 Difference]: Without dead ends: 18162 [2021-12-06 18:33:32,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:33:32,357 INFO L933 BasicCegarLoop]: 6811 mSDtfsCounter, 7292 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 2291 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8127 SdHoareTripleChecker+Valid, 10075 SdHoareTripleChecker+Invalid, 4990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2291 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:33:32,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8127 Valid, 10075 Invalid, 4990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2291 Valid, 2691 Invalid, 8 Unknown, 0 Unchecked, 28.1s Time] [2021-12-06 18:33:32,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18162 states. [2021-12-06 18:33:32,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18162 to 17042. [2021-12-06 18:33:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17042 states, 12020 states have (on average 1.3323627287853577) internal successors, (16015), 12302 states have internal predecessors, (16015), 3993 states have call successors, (3993), 1003 states have call predecessors, (3993), 1028 states have return successors, (4258), 3906 states have call predecessors, (4258), 3980 states have call successors, (4258) [2021-12-06 18:33:32,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17042 states to 17042 states and 24266 transitions. [2021-12-06 18:33:32,962 INFO L78 Accepts]: Start accepts. Automaton has 17042 states and 24266 transitions. Word has length 96 [2021-12-06 18:33:32,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:33:32,963 INFO L470 AbstractCegarLoop]: Abstraction has 17042 states and 24266 transitions. [2021-12-06 18:33:32,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:33:32,963 INFO L276 IsEmpty]: Start isEmpty. Operand 17042 states and 24266 transitions. [2021-12-06 18:33:32,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-06 18:33:32,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:33:32,964 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:33:32,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 18:33:32,964 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:33:32,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:33:32,964 INFO L85 PathProgramCache]: Analyzing trace with hash 156090604, now seen corresponding path program 1 times [2021-12-06 18:33:32,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:33:32,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199758220] [2021-12-06 18:33:32,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:33:32,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:33:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:33:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:33:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:33:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:33:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:33:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:33:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:33:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:33:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:33:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:33:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:33:33,230 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:33:33,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:33:33,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199758220] [2021-12-06 18:33:33,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199758220] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:33:33,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:33:33,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:33:33,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128548811] [2021-12-06 18:33:33,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:33:33,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:33:33,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:33:33,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:33:33,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:33:33,232 INFO L87 Difference]: Start difference. First operand 17042 states and 24266 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:33:35,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:38,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:41,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:45,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:50,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:33:54,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:33:56,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:03,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:05,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:06,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:34:06,119 INFO L93 Difference]: Finished difference Result 18152 states and 26136 transitions. [2021-12-06 18:34:06,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:34:06,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 97 [2021-12-06 18:34:06,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:34:06,154 INFO L225 Difference]: With dead ends: 18152 [2021-12-06 18:34:06,154 INFO L226 Difference]: Without dead ends: 18149 [2021-12-06 18:34:06,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:34:06,160 INFO L933 BasicCegarLoop]: 6932 mSDtfsCounter, 7513 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 3191 mSolverCounterSat, 2389 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8446 SdHoareTripleChecker+Valid, 10560 SdHoareTripleChecker+Invalid, 5589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2389 IncrementalHoareTripleChecker+Valid, 3191 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:34:06,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8446 Valid, 10560 Invalid, 5589 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2389 Valid, 3191 Invalid, 9 Unknown, 0 Unchecked, 32.1s Time] [2021-12-06 18:34:06,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18149 states. [2021-12-06 18:34:06,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18149 to 17041. [2021-12-06 18:34:06,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17041 states, 12020 states have (on average 1.332279534109817) internal successors, (16014), 12301 states have internal predecessors, (16014), 3992 states have call successors, (3992), 1003 states have call predecessors, (3992), 1028 states have return successors, (4258), 3906 states have call predecessors, (4258), 3980 states have call successors, (4258) [2021-12-06 18:34:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17041 states to 17041 states and 24264 transitions. [2021-12-06 18:34:06,794 INFO L78 Accepts]: Start accepts. Automaton has 17041 states and 24264 transitions. Word has length 97 [2021-12-06 18:34:06,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:34:06,795 INFO L470 AbstractCegarLoop]: Abstraction has 17041 states and 24264 transitions. [2021-12-06 18:34:06,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:34:06,795 INFO L276 IsEmpty]: Start isEmpty. Operand 17041 states and 24264 transitions. [2021-12-06 18:34:06,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-12-06 18:34:06,796 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:34:06,796 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:34:06,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 18:34:06,796 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:34:06,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:34:06,796 INFO L85 PathProgramCache]: Analyzing trace with hash 541785094, now seen corresponding path program 1 times [2021-12-06 18:34:06,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:34:06,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176190412] [2021-12-06 18:34:06,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:34:06,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:34:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:06,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:34:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:06,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:34:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:06,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:34:06,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:06,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:34:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:07,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:34:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:07,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:34:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:07,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:34:07,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:07,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:34:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:07,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:34:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:07,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:34:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:07,061 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:34:07,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:34:07,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176190412] [2021-12-06 18:34:07,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176190412] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:34:07,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:34:07,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:34:07,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662402108] [2021-12-06 18:34:07,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:34:07,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:34:07,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:34:07,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:34:07,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:34:07,063 INFO L87 Difference]: Start difference. First operand 17041 states and 24264 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:34:09,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:12,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:16,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:20,748 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:24,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:34:26,830 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:33,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:34,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:34:34,324 INFO L93 Difference]: Finished difference Result 18159 states and 26157 transitions. [2021-12-06 18:34:34,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:34:34,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 98 [2021-12-06 18:34:34,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:34:34,360 INFO L225 Difference]: With dead ends: 18159 [2021-12-06 18:34:34,360 INFO L226 Difference]: Without dead ends: 18156 [2021-12-06 18:34:34,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:34:34,365 INFO L933 BasicCegarLoop]: 6808 mSDtfsCounter, 7392 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 2616 mSolverCounterSat, 2350 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8222 SdHoareTripleChecker+Valid, 9973 SdHoareTripleChecker+Invalid, 4972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2350 IncrementalHoareTripleChecker+Valid, 2616 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:34:34,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8222 Valid, 9973 Invalid, 4972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2350 Valid, 2616 Invalid, 6 Unknown, 0 Unchecked, 26.5s Time] [2021-12-06 18:34:34,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18156 states. [2021-12-06 18:34:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18156 to 17040. [2021-12-06 18:34:34,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17040 states, 12020 states have (on average 1.3321963394342762) internal successors, (16013), 12300 states have internal predecessors, (16013), 3991 states have call successors, (3991), 1003 states have call predecessors, (3991), 1028 states have return successors, (4258), 3906 states have call predecessors, (4258), 3980 states have call successors, (4258) [2021-12-06 18:34:35,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17040 states to 17040 states and 24262 transitions. [2021-12-06 18:34:35,044 INFO L78 Accepts]: Start accepts. Automaton has 17040 states and 24262 transitions. Word has length 98 [2021-12-06 18:34:35,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:34:35,044 INFO L470 AbstractCegarLoop]: Abstraction has 17040 states and 24262 transitions. [2021-12-06 18:34:35,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:34:35,044 INFO L276 IsEmpty]: Start isEmpty. Operand 17040 states and 24262 transitions. [2021-12-06 18:34:35,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-06 18:34:35,045 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:34:35,045 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:34:35,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 18:34:35,045 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:34:35,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:34:35,046 INFO L85 PathProgramCache]: Analyzing trace with hash -386582737, now seen corresponding path program 1 times [2021-12-06 18:34:35,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:34:35,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536951276] [2021-12-06 18:34:35,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:34:35,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:34:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:34:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:34:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:34:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:34:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:34:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:34:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:34:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:34:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:34:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:34:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:34:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:34:35,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:34:35,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536951276] [2021-12-06 18:34:35,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536951276] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:34:35,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:34:35,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:34:35,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141762659] [2021-12-06 18:34:35,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:34:35,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:34:35,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:34:35,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:34:35,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:34:35,312 INFO L87 Difference]: Start difference. First operand 17040 states and 24262 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:34:38,016 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:40,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:44,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:50,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:34:53,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:34:55,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:03,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:06,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:09,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:12,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:17,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:35:17,656 INFO L93 Difference]: Finished difference Result 35504 states and 51478 transitions. [2021-12-06 18:35:17,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:35:17,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 99 [2021-12-06 18:35:17,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:35:17,759 INFO L225 Difference]: With dead ends: 35504 [2021-12-06 18:35:17,759 INFO L226 Difference]: Without dead ends: 35500 [2021-12-06 18:35:17,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:35:17,770 INFO L933 BasicCegarLoop]: 7821 mSDtfsCounter, 8520 mSDsluCounter, 9462 mSDsCounter, 0 mSdLazyCounter, 4938 mSolverCounterSat, 3610 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9609 SdHoareTripleChecker+Valid, 17283 SdHoareTripleChecker+Invalid, 8557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3610 IncrementalHoareTripleChecker+Valid, 4938 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.6s IncrementalHoareTripleChecker+Time [2021-12-06 18:35:17,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9609 Valid, 17283 Invalid, 8557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3610 Valid, 4938 Invalid, 9 Unknown, 0 Unchecked, 40.6s Time] [2021-12-06 18:35:17,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35500 states. [2021-12-06 18:35:19,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35500 to 33390. [2021-12-06 18:35:19,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33390 states, 23540 states have (on average 1.3323704333050128) internal successors, (31364), 24094 states have internal predecessors, (31364), 7849 states have call successors, (7849), 1951 states have call predecessors, (7849), 2000 states have return successors, (8692), 7676 states have call predecessors, (8692), 7838 states have call successors, (8692) [2021-12-06 18:35:19,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33390 states to 33390 states and 47905 transitions. [2021-12-06 18:35:19,305 INFO L78 Accepts]: Start accepts. Automaton has 33390 states and 47905 transitions. Word has length 99 [2021-12-06 18:35:19,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:35:19,306 INFO L470 AbstractCegarLoop]: Abstraction has 33390 states and 47905 transitions. [2021-12-06 18:35:19,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:35:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 33390 states and 47905 transitions. [2021-12-06 18:35:19,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-06 18:35:19,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:35:19,307 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:35:19,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 18:35:19,307 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:35:19,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:35:19,307 INFO L85 PathProgramCache]: Analyzing trace with hash 898790441, now seen corresponding path program 1 times [2021-12-06 18:35:19,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:35:19,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436679365] [2021-12-06 18:35:19,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:35:19,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:35:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:35:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:35:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:35:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:35:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:35:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:35:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:35:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:35:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:35:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:35:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:35:19,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:35:19,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436679365] [2021-12-06 18:35:19,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436679365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:35:19,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:35:19,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:35:19,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784054912] [2021-12-06 18:35:19,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:35:19,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:35:19,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:35:19,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:35:19,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:35:19,578 INFO L87 Difference]: Start difference. First operand 33390 states and 47905 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:35:22,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:24,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:27,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:30,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:34,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:37,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:41,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:35:43,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:50,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:53,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:35:54,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:35:54,660 INFO L93 Difference]: Finished difference Result 35504 states and 51469 transitions. [2021-12-06 18:35:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:35:54,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 100 [2021-12-06 18:35:54,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:35:54,741 INFO L225 Difference]: With dead ends: 35504 [2021-12-06 18:35:54,741 INFO L226 Difference]: Without dead ends: 35501 [2021-12-06 18:35:54,754 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:35:54,755 INFO L933 BasicCegarLoop]: 6797 mSDtfsCounter, 7286 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 2296 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8121 SdHoareTripleChecker+Valid, 10058 SdHoareTripleChecker+Invalid, 4994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2296 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.5s IncrementalHoareTripleChecker+Time [2021-12-06 18:35:54,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8121 Valid, 10058 Invalid, 4994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2296 Valid, 2689 Invalid, 9 Unknown, 0 Unchecked, 33.5s Time] [2021-12-06 18:35:54,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35501 states. [2021-12-06 18:35:56,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35501 to 33341. [2021-12-06 18:35:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33341 states, 23508 states have (on average 1.332440020418581) internal successors, (31323), 24061 states have internal predecessors, (31323), 7836 states have call successors, (7836), 1951 states have call predecessors, (7836), 1996 states have return successors, (8640), 7660 states have call predecessors, (8640), 7826 states have call successors, (8640) [2021-12-06 18:35:56,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33341 states to 33341 states and 47799 transitions. [2021-12-06 18:35:56,170 INFO L78 Accepts]: Start accepts. Automaton has 33341 states and 47799 transitions. Word has length 100 [2021-12-06 18:35:56,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:35:56,170 INFO L470 AbstractCegarLoop]: Abstraction has 33341 states and 47799 transitions. [2021-12-06 18:35:56,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:35:56,171 INFO L276 IsEmpty]: Start isEmpty. Operand 33341 states and 47799 transitions. [2021-12-06 18:35:56,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-06 18:35:56,172 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:35:56,172 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:35:56,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 18:35:56,172 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:35:56,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:35:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash 2090658162, now seen corresponding path program 1 times [2021-12-06 18:35:56,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:35:56,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359532261] [2021-12-06 18:35:56,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:35:56,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:35:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:35:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:35:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:35:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:35:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:35:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:35:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:35:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:35:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:35:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:35:56,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:35:56,468 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:35:56,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:35:56,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359532261] [2021-12-06 18:35:56,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359532261] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:35:56,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:35:56,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:35:56,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945747904] [2021-12-06 18:35:56,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:35:56,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:35:56,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:35:56,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:35:56,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:35:56,470 INFO L87 Difference]: Start difference. First operand 33341 states and 47799 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:35:59,261 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:01,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:06,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:11,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:14,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:36:17,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:24,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:36:24,876 INFO L93 Difference]: Finished difference Result 35511 states and 51480 transitions. [2021-12-06 18:36:24,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:36:24,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 101 [2021-12-06 18:36:24,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:36:24,972 INFO L225 Difference]: With dead ends: 35511 [2021-12-06 18:36:24,972 INFO L226 Difference]: Without dead ends: 35508 [2021-12-06 18:36:24,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:36:24,988 INFO L933 BasicCegarLoop]: 6819 mSDtfsCounter, 7373 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 2612 mSolverCounterSat, 2342 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8202 SdHoareTripleChecker+Valid, 9983 SdHoareTripleChecker+Invalid, 4960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2342 IncrementalHoareTripleChecker+Valid, 2612 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2021-12-06 18:36:24,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8202 Valid, 9983 Invalid, 4960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2342 Valid, 2612 Invalid, 6 Unknown, 0 Unchecked, 26.9s Time] [2021-12-06 18:36:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35508 states. [2021-12-06 18:36:26,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35508 to 33340. [2021-12-06 18:36:26,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33340 states, 23508 states have (on average 1.3323974817083546) internal successors, (31322), 24060 states have internal predecessors, (31322), 7835 states have call successors, (7835), 1951 states have call predecessors, (7835), 1996 states have return successors, (8640), 7660 states have call predecessors, (8640), 7826 states have call successors, (8640) [2021-12-06 18:36:26,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33340 states to 33340 states and 47797 transitions. [2021-12-06 18:36:26,497 INFO L78 Accepts]: Start accepts. Automaton has 33340 states and 47797 transitions. Word has length 101 [2021-12-06 18:36:26,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:36:26,497 INFO L470 AbstractCegarLoop]: Abstraction has 33340 states and 47797 transitions. [2021-12-06 18:36:26,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:36:26,497 INFO L276 IsEmpty]: Start isEmpty. Operand 33340 states and 47797 transitions. [2021-12-06 18:36:26,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-06 18:36:26,498 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:36:26,498 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:36:26,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 18:36:26,498 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:36:26,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:36:26,499 INFO L85 PathProgramCache]: Analyzing trace with hash 383856716, now seen corresponding path program 1 times [2021-12-06 18:36:26,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:36:26,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287630282] [2021-12-06 18:36:26,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:36:26,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:36:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:36:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:36:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:36:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:36:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:36:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:36:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:36:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:36:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:36:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:36:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:36:26,749 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:36:26,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:36:26,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287630282] [2021-12-06 18:36:26,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287630282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:36:26,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:36:26,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:36:26,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431573209] [2021-12-06 18:36:26,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:36:26,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:36:26,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:36:26,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:36:26,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:36:26,751 INFO L87 Difference]: Start difference. First operand 33340 states and 47797 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:36:29,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:32,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:35,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:41,028 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:44,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:36:46,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:54,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:57,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:36:58,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:36:58,716 INFO L93 Difference]: Finished difference Result 35502 states and 51465 transitions. [2021-12-06 18:36:58,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:36:58,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 102 [2021-12-06 18:36:58,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:36:58,814 INFO L225 Difference]: With dead ends: 35502 [2021-12-06 18:36:58,815 INFO L226 Difference]: Without dead ends: 35499 [2021-12-06 18:36:58,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:36:58,833 INFO L933 BasicCegarLoop]: 6822 mSDtfsCounter, 7262 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 2277 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8098 SdHoareTripleChecker+Valid, 10081 SdHoareTripleChecker+Invalid, 4980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2277 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2021-12-06 18:36:58,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8098 Valid, 10081 Invalid, 4980 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2277 Valid, 2696 Invalid, 7 Unknown, 0 Unchecked, 30.4s Time] [2021-12-06 18:36:58,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35499 states. [2021-12-06 18:37:00,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35499 to 33339. [2021-12-06 18:37:00,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33339 states, 23508 states have (on average 1.3323549429981283) internal successors, (31321), 24059 states have internal predecessors, (31321), 7834 states have call successors, (7834), 1951 states have call predecessors, (7834), 1996 states have return successors, (8640), 7660 states have call predecessors, (8640), 7826 states have call successors, (8640) [2021-12-06 18:37:00,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33339 states to 33339 states and 47795 transitions. [2021-12-06 18:37:00,331 INFO L78 Accepts]: Start accepts. Automaton has 33339 states and 47795 transitions. Word has length 102 [2021-12-06 18:37:00,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:37:00,332 INFO L470 AbstractCegarLoop]: Abstraction has 33339 states and 47795 transitions. [2021-12-06 18:37:00,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:37:00,332 INFO L276 IsEmpty]: Start isEmpty. Operand 33339 states and 47795 transitions. [2021-12-06 18:37:00,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-06 18:37:00,333 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:37:00,333 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:37:00,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 18:37:00,333 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:37:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash -987375691, now seen corresponding path program 1 times [2021-12-06 18:37:00,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:00,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916002692] [2021-12-06 18:37:00,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:00,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:37:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:37:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:37:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:37:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:37:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:37:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:37:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:37:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:37:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:37:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:00,573 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-06 18:37:00,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:00,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916002692] [2021-12-06 18:37:00,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916002692] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:00,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:00,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:37:00,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385543239] [2021-12-06 18:37:00,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:00,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:37:00,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:00,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:37:00,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:37:00,574 INFO L87 Difference]: Start difference. First operand 33339 states and 47795 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:37:03,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:05,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:09,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:13,629 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:16,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:19,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:37:22,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:29,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:31,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:37:31,591 INFO L93 Difference]: Finished difference Result 35501 states and 51463 transitions. [2021-12-06 18:37:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:37:31,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 103 [2021-12-06 18:37:31,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:37:31,675 INFO L225 Difference]: With dead ends: 35501 [2021-12-06 18:37:31,675 INFO L226 Difference]: Without dead ends: 35477 [2021-12-06 18:37:31,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:37:31,688 INFO L933 BasicCegarLoop]: 6794 mSDtfsCounter, 7278 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 2693 mSolverCounterSat, 2290 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8113 SdHoareTripleChecker+Valid, 10053 SdHoareTripleChecker+Invalid, 4989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2290 IncrementalHoareTripleChecker+Valid, 2693 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2021-12-06 18:37:31,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8113 Valid, 10053 Invalid, 4989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2290 Valid, 2693 Invalid, 6 Unknown, 0 Unchecked, 29.3s Time] [2021-12-06 18:37:31,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35477 states. [2021-12-06 18:37:33,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35477 to 33317. [2021-12-06 18:37:33,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33317 states, 23489 states have (on average 1.3323683426284645) internal successors, (31296), 24039 states have internal predecessors, (31296), 7832 states have call successors, (7832), 1950 states have call predecessors, (7832), 1995 states have return successors, (8639), 7659 states have call predecessors, (8639), 7825 states have call successors, (8639) [2021-12-06 18:37:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33317 states to 33317 states and 47767 transitions. [2021-12-06 18:37:33,272 INFO L78 Accepts]: Start accepts. Automaton has 33317 states and 47767 transitions. Word has length 103 [2021-12-06 18:37:33,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:37:33,272 INFO L470 AbstractCegarLoop]: Abstraction has 33317 states and 47767 transitions. [2021-12-06 18:37:33,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-06 18:37:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand 33317 states and 47767 transitions. [2021-12-06 18:37:33,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-06 18:37:33,273 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:37:33,273 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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] [2021-12-06 18:37:33,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 18:37:33,274 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:37:33,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:33,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1221044297, now seen corresponding path program 1 times [2021-12-06 18:37:33,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:33,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988966061] [2021-12-06 18:37:33,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:33,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:37:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:37:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:37:33,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:37:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:37:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:37:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:37:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:37:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:37:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:37:33,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 18:37:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 18:37:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 18:37:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-12-06 18:37:33,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:33,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988966061] [2021-12-06 18:37:33,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988966061] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:33,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:33,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:37:33,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554692234] [2021-12-06 18:37:33,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:33,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:37:33,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:33,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:37:33,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:37:33,560 INFO L87 Difference]: Start difference. First operand 33317 states and 47767 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 18:37:36,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:39,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:45,475 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:51,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:37:55,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:00,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:38:02,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:04,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:17,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:21,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:22,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:38:22,400 INFO L93 Difference]: Finished difference Result 35481 states and 51439 transitions. [2021-12-06 18:38:22,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:38:22,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2021-12-06 18:38:22,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:38:22,484 INFO L225 Difference]: With dead ends: 35481 [2021-12-06 18:38:22,484 INFO L226 Difference]: Without dead ends: 35478 [2021-12-06 18:38:22,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:38:22,495 INFO L933 BasicCegarLoop]: 5859 mSDtfsCounter, 10879 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 6803 mSolverCounterSat, 7023 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10909 SdHoareTripleChecker+Valid, 6342 SdHoareTripleChecker+Invalid, 13834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7023 IncrementalHoareTripleChecker+Valid, 6803 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.8s IncrementalHoareTripleChecker+Time [2021-12-06 18:38:22,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10909 Valid, 6342 Invalid, 13834 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7023 Valid, 6803 Invalid, 8 Unknown, 0 Unchecked, 46.8s Time] [2021-12-06 18:38:22,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35478 states. [2021-12-06 18:38:24,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35478 to 33316. [2021-12-06 18:38:24,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33316 states, 23489 states have (on average 1.3320277576738047) internal successors, (31288), 24038 states have internal predecessors, (31288), 7831 states have call successors, (7831), 1950 states have call predecessors, (7831), 1995 states have return successors, (8639), 7659 states have call predecessors, (8639), 7825 states have call successors, (8639) [2021-12-06 18:38:24,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33316 states to 33316 states and 47758 transitions. [2021-12-06 18:38:24,141 INFO L78 Accepts]: Start accepts. Automaton has 33316 states and 47758 transitions. Word has length 123 [2021-12-06 18:38:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:38:24,141 INFO L470 AbstractCegarLoop]: Abstraction has 33316 states and 47758 transitions. [2021-12-06 18:38:24,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-06 18:38:24,141 INFO L276 IsEmpty]: Start isEmpty. Operand 33316 states and 47758 transitions. [2021-12-06 18:38:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-06 18:38:24,144 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:38:24,144 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:24,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 18:38:24,144 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:38:24,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:24,145 INFO L85 PathProgramCache]: Analyzing trace with hash 974775979, now seen corresponding path program 1 times [2021-12-06 18:38:24,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:24,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359489958] [2021-12-06 18:38:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:24,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:38:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:38:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:38:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:38:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:38:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:38:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:38:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:38:24,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:38:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:38:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 18:38:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-12-06 18:38:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 18:38:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-06 18:38:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:38:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 18:38:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:38:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 18:38:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-12-06 18:38:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-06 18:38:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:38:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-12-06 18:38:24,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:24,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359489958] [2021-12-06 18:38:24,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359489958] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:24,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:24,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:38:24,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669464974] [2021-12-06 18:38:24,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:24,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:38:24,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:24,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:38:24,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:38:24,511 INFO L87 Difference]: Start difference. First operand 33316 states and 47758 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 18:38:28,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:31,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:34,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:42,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:44,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:38:54,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:01,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:03,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:08,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 18:39:10,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:12,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:14,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:23,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:29,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:33,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:49,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:54,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:39:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:39:56,909 INFO L93 Difference]: Finished difference Result 82262 states and 119502 transitions. [2021-12-06 18:39:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 18:39:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 196 [2021-12-06 18:39:56,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:39:57,036 INFO L225 Difference]: With dead ends: 82262 [2021-12-06 18:39:57,036 INFO L226 Difference]: Without dead ends: 48949 [2021-12-06 18:39:57,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-12-06 18:39:57,118 INFO L933 BasicCegarLoop]: 7128 mSDtfsCounter, 14854 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 14846 mSolverCounterSat, 11141 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15007 SdHoareTripleChecker+Valid, 8420 SdHoareTripleChecker+Invalid, 26004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11141 IncrementalHoareTripleChecker+Valid, 14846 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.7s IncrementalHoareTripleChecker+Time [2021-12-06 18:39:57,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15007 Valid, 8420 Invalid, 26004 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11141 Valid, 14846 Invalid, 17 Unknown, 0 Unchecked, 88.7s Time] [2021-12-06 18:39:57,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48949 states. [2021-12-06 18:39:59,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48949 to 40088. [2021-12-06 18:39:59,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40088 states, 28141 states have (on average 1.3172239792473615) internal successors, (37068), 28780 states have internal predecessors, (37068), 9207 states have call successors, (9207), 2552 states have call predecessors, (9207), 2739 states have return successors, (10989), 9115 states have call predecessors, (10989), 9201 states have call successors, (10989) [2021-12-06 18:39:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40088 states to 40088 states and 57264 transitions. [2021-12-06 18:39:59,425 INFO L78 Accepts]: Start accepts. Automaton has 40088 states and 57264 transitions. Word has length 196 [2021-12-06 18:39:59,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:39:59,425 INFO L470 AbstractCegarLoop]: Abstraction has 40088 states and 57264 transitions. [2021-12-06 18:39:59,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-06 18:39:59,426 INFO L276 IsEmpty]: Start isEmpty. Operand 40088 states and 57264 transitions. [2021-12-06 18:39:59,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-12-06 18:39:59,429 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:39:59,429 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:59,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 18:39:59,430 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:39:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash -626172758, now seen corresponding path program 1 times [2021-12-06 18:39:59,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:59,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147024922] [2021-12-06 18:39:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:59,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 18:39:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 18:39:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:39:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 18:39:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:39:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 18:39:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-06 18:39:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 18:39:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-06 18:39:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-06 18:39:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-06 18:39:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-06 18:39:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-06 18:39:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-06 18:39:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-06 18:39:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-06 18:39:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-06 18:39:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-06 18:39:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:39:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-06 18:39:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:39:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 18:39:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:59,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:39:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:00,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-06 18:40:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:00,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-06 18:40:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:00,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-06 18:40:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:00,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 18:40:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-12-06 18:40:00,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:40:00,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147024922] [2021-12-06 18:40:00,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147024922] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:00,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:00,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:40:00,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529200201] [2021-12-06 18:40:00,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:00,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:40:00,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:40:00,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:40:00,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:40:00,028 INFO L87 Difference]: Start difference. First operand 40088 states and 57264 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 18:40:05,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:08,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:11,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:13,129 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:15,245 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:21,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:32,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:34,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:37,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:39,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:41,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:43,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:40:54,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:41:05,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 18:41:07,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 18:41:10,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:41:12,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 18:41:16,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []