./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a --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 7a2974a33527a9392dca8d355734fee3e0faaae6e14749128119c28fd0f37e8f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:29:39,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:29:39,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:29:39,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:29:39,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:29:39,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:29:39,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:29:39,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:29:39,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:29:39,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:29:39,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:29:39,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:29:39,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:29:39,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:29:39,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:29:39,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:29:39,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:29:39,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:29:39,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:29:39,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:29:39,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:29:39,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:29:39,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:29:39,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:29:39,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:29:39,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:29:39,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:29:39,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:29:39,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:29:39,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:29:39,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:29:39,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:29:39,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:29:39,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:29:39,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:29:39,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:29:39,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:29:39,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:29:39,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:29:39,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:29:39,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:29:39,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 17:29:39,434 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:29:39,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:29:39,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:29:39,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:29:39,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:29:39,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:29:39,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:29:39,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:29:39,438 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:29:39,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:29:39,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:29:39,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:29:39,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:29:39,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:29:39,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:29:39,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:29:39,440 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:29:39,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:29:39,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:29:39,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:29:39,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:29:39,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:39,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:29:39,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:29:39,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:29:39,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:29:39,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:29:39,444 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:29:39,444 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:29:39,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:29:39,444 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_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a2974a33527a9392dca8d355734fee3e0faaae6e14749128119c28fd0f37e8f [2022-11-21 17:29:39,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:29:39,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:29:39,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:29:39,754 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:29:39,755 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:29:39,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i [2022-11-21 17:29:43,014 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:29:43,714 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:29:43,715 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i [2022-11-21 17:29:43,794 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/data/fde71805f/c65c134be8ea47b4ada27e4eb70d2d88/FLAGef3f3f615 [2022-11-21 17:29:43,819 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/data/fde71805f/c65c134be8ea47b4ada27e4eb70d2d88 [2022-11-21 17:29:43,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:29:43,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:29:43,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:43,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:29:43,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:29:43,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:43" (1/1) ... [2022-11-21 17:29:43,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a786988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:43, skipping insertion in model container [2022-11-21 17:29:43,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:43" (1/1) ... [2022-11-21 17:29:43,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:29:44,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:29:47,408 WARN L237 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_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i[386204,386217] [2022-11-21 17:29:47,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:47,577 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:29:48,265 WARN L237 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_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i[386204,386217] [2022-11-21 17:29:48,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:48,430 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:29:48,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48 WrapperNode [2022-11-21 17:29:48,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:48,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:48,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:29:48,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:29:48,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:48,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:48,906 INFO L138 Inliner]: procedures = 333, calls = 3698, calls flagged for inlining = 139, calls inlined = 136, statements flattened = 6857 [2022-11-21 17:29:48,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:48,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:29:48,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:29:48,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:29:48,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:48,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:48,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:48,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:49,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:49,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:49,324 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:49,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:49,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:29:49,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:29:49,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:29:49,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:29:49,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (1/1) ... [2022-11-21 17:29:49,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:49,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:49,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:49,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d1e845-7e0b-49b3-bfa6-52ce8eb8266a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:29:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2022-11-21 17:29:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2022-11-21 17:29:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-21 17:29:49,501 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-21 17:29:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2022-11-21 17:29:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2022-11-21 17:29:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 17:29:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 17:29:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 17:29:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 17:29:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_interrupt [2022-11-21 17:29:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_interrupt [2022-11-21 17:29:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-21 17:29:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-21 17:29:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2022-11-21 17:29:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2022-11-21 17:29:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-21 17:29:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-21 17:29:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-21 17:29:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-21 17:29:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2022-11-21 17:29:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2022-11-21 17:29:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-21 17:29:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-21 17:29:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2022-11-21 17:29:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2022-11-21 17:29:49,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 17:29:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 17:29:49,508 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2022-11-21 17:29:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2022-11-21 17:29:49,509 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2022-11-21 17:29:49,509 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2022-11-21 17:29:49,509 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-21 17:29:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-21 17:29:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2022-11-21 17:29:49,511 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2022-11-21 17:29:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2022-11-21 17:29:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2022-11-21 17:29:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 17:29:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 17:29:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2022-11-21 17:29:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2022-11-21 17:29:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2022-11-21 17:29:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2022-11-21 17:29:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2022-11-21 17:29:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2022-11-21 17:29:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-21 17:29:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-21 17:29:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2022-11-21 17:29:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2022-11-21 17:29:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2022-11-21 17:29:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2022-11-21 17:29:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2022-11-21 17:29:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2022-11-21 17:29:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-21 17:29:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-21 17:29:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2022-11-21 17:29:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2022-11-21 17:29:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2022-11-21 17:29:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2022-11-21 17:29:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 17:29:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 17:29:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-21 17:29:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-21 17:29:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2022-11-21 17:29:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2022-11-21 17:29:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-21 17:29:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-21 17:29:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 17:29:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 17:29:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2022-11-21 17:29:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2022-11-21 17:29:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2022-11-21 17:29:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2022-11-21 17:29:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2022-11-21 17:29:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2022-11-21 17:29:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2022-11-21 17:29:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2022-11-21 17:29:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2022-11-21 17:29:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2022-11-21 17:29:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-21 17:29:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-21 17:29:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:29:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2022-11-21 17:29:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2022-11-21 17:29:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-21 17:29:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-21 17:29:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-21 17:29:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2022-11-21 17:29:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2022-11-21 17:29:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2022-11-21 17:29:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2022-11-21 17:29:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2022-11-21 17:29:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2022-11-21 17:29:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2022-11-21 17:29:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2022-11-21 17:29:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-21 17:29:49,528 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-21 17:29:49,528 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2022-11-21 17:29:49,529 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2022-11-21 17:29:49,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 17:29:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2022-11-21 17:29:49,530 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2022-11-21 17:29:49,530 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2022-11-21 17:29:49,530 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2022-11-21 17:29:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-21 17:29:49,531 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-21 17:29:49,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-21 17:29:49,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-21 17:29:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-21 17:29:49,532 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-21 17:29:49,532 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-21 17:29:49,532 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-21 17:29:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-21 17:29:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2022-11-21 17:29:49,533 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2022-11-21 17:29:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:29:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-21 17:29:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2022-11-21 17:29:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-21 17:29:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-21 17:29:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 17:29:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2022-11-21 17:29:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2022-11-21 17:29:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-21 17:29:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-21 17:29:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2022-11-21 17:29:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2022-11-21 17:29:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2022-11-21 17:29:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2022-11-21 17:29:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-21 17:29:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-21 17:29:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2022-11-21 17:29:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2022-11-21 17:29:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-21 17:29:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-21 17:29:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-21 17:29:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-21 17:29:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-21 17:29:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-21 17:29:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2022-11-21 17:29:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2022-11-21 17:29:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2022-11-21 17:29:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2022-11-21 17:29:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-21 17:29:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-21 17:29:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-21 17:29:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-21 17:29:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-21 17:29:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-21 17:29:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2022-11-21 17:29:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2022-11-21 17:29:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 17:29:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2022-11-21 17:29:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2022-11-21 17:29:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2022-11-21 17:29:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2022-11-21 17:29:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2022-11-21 17:29:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2022-11-21 17:29:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-21 17:29:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-21 17:29:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 17:29:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 17:29:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-21 17:29:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-11-21 17:29:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2022-11-21 17:29:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2022-11-21 17:29:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 17:29:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-11-21 17:29:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-11-21 17:29:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-21 17:29:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-21 17:29:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:29:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-21 17:29:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-21 17:29:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-21 17:29:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-21 17:29:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2022-11-21 17:29:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2022-11-21 17:29:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 17:29:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 17:29:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2022-11-21 17:29:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2022-11-21 17:29:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2022-11-21 17:29:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2022-11-21 17:29:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-21 17:29:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-21 17:29:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-21 17:29:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-21 17:29:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2022-11-21 17:29:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2022-11-21 17:29:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:29:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2022-11-21 17:29:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2022-11-21 17:29:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-21 17:29:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-21 17:29:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-21 17:29:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-21 17:29:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 17:29:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 17:29:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2022-11-21 17:29:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2022-11-21 17:29:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-21 17:29:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-21 17:29:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2022-11-21 17:29:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2022-11-21 17:29:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-11-21 17:29:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-11-21 17:29:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2022-11-21 17:29:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2022-11-21 17:29:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 17:29:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-21 17:29:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-21 17:29:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2022-11-21 17:29:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2022-11-21 17:29:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-21 17:29:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-21 17:29:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2022-11-21 17:29:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2022-11-21 17:29:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-21 17:29:49,564 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-21 17:29:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:29:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2022-11-21 17:29:49,564 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2022-11-21 17:29:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2022-11-21 17:29:49,564 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2022-11-21 17:29:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-21 17:29:49,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-21 17:29:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 17:29:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-21 17:29:49,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-21 17:29:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2022-11-21 17:29:49,565 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2022-11-21 17:29:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-11-21 17:29:49,566 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-11-21 17:29:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-21 17:29:49,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-21 17:29:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-21 17:29:49,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-21 17:29:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2022-11-21 17:29:49,567 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2022-11-21 17:29:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2022-11-21 17:29:49,567 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2022-11-21 17:29:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2022-11-21 17:29:49,567 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2022-11-21 17:29:49,568 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2022-11-21 17:29:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2022-11-21 17:29:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2022-11-21 17:29:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2022-11-21 17:29:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2022-11-21 17:29:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2022-11-21 17:29:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2022-11-21 17:29:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2022-11-21 17:29:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2022-11-21 17:29:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2022-11-21 17:29:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2022-11-21 17:29:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2022-11-21 17:29:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2022-11-21 17:29:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2022-11-21 17:29:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2022-11-21 17:29:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2022-11-21 17:29:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2022-11-21 17:29:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2022-11-21 17:29:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2022-11-21 17:29:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2022-11-21 17:29:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2022-11-21 17:29:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2022-11-21 17:29:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-21 17:29:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-21 17:29:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-21 17:29:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-21 17:29:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2022-11-21 17:29:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2022-11-21 17:29:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-21 17:29:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-21 17:29:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2022-11-21 17:29:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2022-11-21 17:29:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2022-11-21 17:29:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2022-11-21 17:29:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2022-11-21 17:29:49,580 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2022-11-21 17:29:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:29:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2022-11-21 17:29:49,580 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2022-11-21 17:29:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2022-11-21 17:29:49,580 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2022-11-21 17:29:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-21 17:29:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:29:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:29:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2022-11-21 17:29:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2022-11-21 17:29:50,888 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:29:50,896 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:29:51,312 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 17:30:10,303 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:30:10,333 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:30:10,334 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-21 17:30:10,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:30:10 BoogieIcfgContainer [2022-11-21 17:30:10,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:30:10,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:30:10,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:30:10,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:30:10,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:29:43" (1/3) ... [2022-11-21 17:30:10,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d635a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:30:10, skipping insertion in model container [2022-11-21 17:30:10,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:48" (2/3) ... [2022-11-21 17:30:10,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d635a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:30:10, skipping insertion in model container [2022-11-21 17:30:10,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:30:10" (3/3) ... [2022-11-21 17:30:10,351 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--de4x5.ko-entry_point.cil.out.i [2022-11-21 17:30:10,372 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:30:10,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:30:10,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:30:10,517 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@781b1717, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:30:10,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:30:10,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 3456 states, 2481 states have (on average 1.3933897621926643) internal successors, (3457), 2543 states have internal predecessors, (3457), 854 states have call successors, (854), 136 states have call predecessors, (854), 135 states have return successors, (846), 835 states have call predecessors, (846), 846 states have call successors, (846) [2022-11-21 17:30:10,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-21 17:30:10,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:30:10,557 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 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] [2022-11-21 17:30:10,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:30:10,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:30:10,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1311695749, now seen corresponding path program 1 times [2022-11-21 17:30:10,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:30:10,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932713982] [2022-11-21 17:30:10,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:30:10,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:30:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:30:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 17:30:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:30:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:30:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 17:30:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 17:30:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 17:30:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 17:30:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:11,709 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-21 17:30:11,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:30:11,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932713982] [2022-11-21 17:30:11,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932713982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:30:11,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:30:11,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:30:11,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872520332] [2022-11-21 17:30:11,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:30:11,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:30:11,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:30:11,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:30:11,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:30:11,773 INFO L87 Difference]: Start difference. First operand has 3456 states, 2481 states have (on average 1.3933897621926643) internal successors, (3457), 2543 states have internal predecessors, (3457), 854 states have call successors, (854), 136 states have call predecessors, (854), 135 states have return successors, (846), 835 states have call predecessors, (846), 846 states have call successors, (846) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:30:13,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:30:15,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:30:30,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:30:30,889 INFO L93 Difference]: Finished difference Result 7424 states and 11322 transitions. [2022-11-21 17:30:30,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:30:30,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 126 [2022-11-21 17:30:30,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:30:30,974 INFO L225 Difference]: With dead ends: 7424 [2022-11-21 17:30:30,974 INFO L226 Difference]: Without dead ends: 3952 [2022-11-21 17:30:31,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:30:31,021 INFO L413 NwaCegarLoop]: 3115 mSDtfsCounter, 3517 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 4566 mSolverCounterSat, 2737 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 6084 SdHoareTripleChecker+Invalid, 7305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2737 IncrementalHoareTripleChecker+Valid, 4566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:30:31,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 6084 Invalid, 7305 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2737 Valid, 4566 Invalid, 2 Unknown, 0 Unchecked, 18.3s Time] [2022-11-21 17:30:31,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2022-11-21 17:30:31,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3387. [2022-11-21 17:30:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3387 states, 2422 states have (on average 1.388934764657308) internal successors, (3364), 2461 states have internal predecessors, (3364), 830 states have call successors, (830), 135 states have call predecessors, (830), 134 states have return successors, (829), 818 states have call predecessors, (829), 829 states have call successors, (829) [2022-11-21 17:30:31,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3387 states to 3387 states and 5023 transitions. [2022-11-21 17:30:31,406 INFO L78 Accepts]: Start accepts. Automaton has 3387 states and 5023 transitions. Word has length 126 [2022-11-21 17:30:31,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:30:31,406 INFO L495 AbstractCegarLoop]: Abstraction has 3387 states and 5023 transitions. [2022-11-21 17:30:31,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:30:31,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3387 states and 5023 transitions. [2022-11-21 17:30:31,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-21 17:30:31,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:30:31,420 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 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] [2022-11-21 17:30:31,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:30:31,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:30:31,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:30:31,422 INFO L85 PathProgramCache]: Analyzing trace with hash 85404045, now seen corresponding path program 1 times [2022-11-21 17:30:31,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:30:31,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402815361] [2022-11-21 17:30:31,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:30:31,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:30:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:31,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:30:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:31,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:31,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 17:30:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:31,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:30:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:30:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:30:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 17:30:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 17:30:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:30:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 17:30:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 17:30:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:30:32,160 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-11-21 17:30:32,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:30:32,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402815361] [2022-11-21 17:30:32,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402815361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:30:32,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:30:32,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:30:32,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531067633] [2022-11-21 17:30:32,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:30:32,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:30:32,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:30:32,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:30:32,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:30:32,164 INFO L87 Difference]: Start difference. First operand 3387 states and 5023 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:30:34,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:01,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:31:01,017 INFO L93 Difference]: Finished difference Result 10982 states and 16451 transitions. [2022-11-21 17:31:01,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:31:01,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 126 [2022-11-21 17:31:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:31:01,091 INFO L225 Difference]: With dead ends: 10982 [2022-11-21 17:31:01,091 INFO L226 Difference]: Without dead ends: 7615 [2022-11-21 17:31:01,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:31:01,123 INFO L413 NwaCegarLoop]: 3729 mSDtfsCounter, 10607 mSDsluCounter, 6033 mSDsCounter, 0 mSdLazyCounter, 8880 mSolverCounterSat, 5984 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10944 SdHoareTripleChecker+Valid, 9762 SdHoareTripleChecker+Invalid, 14865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5984 IncrementalHoareTripleChecker+Valid, 8880 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:31:01,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10944 Valid, 9762 Invalid, 14865 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5984 Valid, 8880 Invalid, 1 Unknown, 0 Unchecked, 27.7s Time] [2022-11-21 17:31:01,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7615 states. [2022-11-21 17:31:01,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7615 to 6486. [2022-11-21 17:31:01,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6486 states, 4648 states have (on average 1.3898450946643717) internal successors, (6460), 4725 states have internal predecessors, (6460), 1578 states have call successors, (1578), 260 states have call predecessors, (1578), 259 states have return successors, (1577), 1555 states have call predecessors, (1577), 1577 states have call successors, (1577) [2022-11-21 17:31:01,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 9615 transitions. [2022-11-21 17:31:01,765 INFO L78 Accepts]: Start accepts. Automaton has 6486 states and 9615 transitions. Word has length 126 [2022-11-21 17:31:01,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:31:01,766 INFO L495 AbstractCegarLoop]: Abstraction has 6486 states and 9615 transitions. [2022-11-21 17:31:01,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:31:01,766 INFO L276 IsEmpty]: Start isEmpty. Operand 6486 states and 9615 transitions. [2022-11-21 17:31:01,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-21 17:31:01,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:31:01,779 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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] [2022-11-21 17:31:01,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:31:01,780 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:31:01,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:31:01,780 INFO L85 PathProgramCache]: Analyzing trace with hash -497563293, now seen corresponding path program 1 times [2022-11-21 17:31:01,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:31:01,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519599429] [2022-11-21 17:31:01,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:31:01,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:31:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:31:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:31:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 17:31:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:31:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:31:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:31:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:31:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:31:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 17:31:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 17:31:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-21 17:31:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-21 17:31:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-21 17:31:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-21 17:31:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-21 17:31:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-11-21 17:31:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-21 17:31:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-21 17:31:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-21 17:31:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-21 17:31:02,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:31:02,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519599429] [2022-11-21 17:31:02,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519599429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:31:02,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:31:02,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 17:31:02,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468900143] [2022-11-21 17:31:02,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:31:02,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 17:31:02,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:31:02,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 17:31:02,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:31:02,946 INFO L87 Difference]: Start difference. First operand 6486 states and 9615 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:31:04,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:06,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:09,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:31:55,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:31:55,603 INFO L93 Difference]: Finished difference Result 22635 states and 34739 transitions. [2022-11-21 17:31:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 17:31:55,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 171 [2022-11-21 17:31:55,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:31:55,770 INFO L225 Difference]: With dead ends: 22635 [2022-11-21 17:31:55,770 INFO L226 Difference]: Without dead ends: 16169 [2022-11-21 17:31:55,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-21 17:31:55,834 INFO L413 NwaCegarLoop]: 2905 mSDtfsCounter, 16463 mSDsluCounter, 12042 mSDsCounter, 0 mSdLazyCounter, 22813 mSolverCounterSat, 10294 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16887 SdHoareTripleChecker+Valid, 14947 SdHoareTripleChecker+Invalid, 33110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 10294 IncrementalHoareTripleChecker+Valid, 22813 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:31:55,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16887 Valid, 14947 Invalid, 33110 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [10294 Valid, 22813 Invalid, 3 Unknown, 0 Unchecked, 50.8s Time] [2022-11-21 17:31:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16169 states. [2022-11-21 17:31:57,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16169 to 14045. [2022-11-21 17:31:57,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14045 states, 10141 states have (on average 1.3687999211123163) internal successors, (13881), 10093 states have internal predecessors, (13881), 3244 states have call successors, (3244), 520 states have call predecessors, (3244), 659 states have return successors, (4139), 3531 states have call predecessors, (4139), 3243 states have call successors, (4139) [2022-11-21 17:31:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14045 states to 14045 states and 21264 transitions. [2022-11-21 17:31:57,155 INFO L78 Accepts]: Start accepts. Automaton has 14045 states and 21264 transitions. Word has length 171 [2022-11-21 17:31:57,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:31:57,158 INFO L495 AbstractCegarLoop]: Abstraction has 14045 states and 21264 transitions. [2022-11-21 17:31:57,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:31:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand 14045 states and 21264 transitions. [2022-11-21 17:31:57,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-21 17:31:57,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:31:57,165 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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] [2022-11-21 17:31:57,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:31:57,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:31:57,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:31:57,166 INFO L85 PathProgramCache]: Analyzing trace with hash 574976697, now seen corresponding path program 1 times [2022-11-21 17:31:57,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:31:57,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715261963] [2022-11-21 17:31:57,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:31:57,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:31:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:31:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:31:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 17:31:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:31:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:31:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:31:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:31:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:31:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 17:31:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:57,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 17:31:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:31:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 17:31:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 17:31:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-21 17:31:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 17:31:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 17:31:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:57,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:31:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:58,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-21 17:31:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-21 17:31:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-21 17:31:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:31:58,025 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-21 17:31:58,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:31:58,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715261963] [2022-11-21 17:31:58,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715261963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:31:58,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:31:58,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 17:31:58,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544394747] [2022-11-21 17:31:58,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:31:58,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 17:31:58,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:31:58,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 17:31:58,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:31:58,027 INFO L87 Difference]: Start difference. First operand 14045 states and 21264 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:32:00,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:32:02,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:32:36,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:32:36,250 INFO L93 Difference]: Finished difference Result 46338 states and 70853 transitions. [2022-11-21 17:32:36,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 17:32:36,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 174 [2022-11-21 17:32:36,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:32:36,521 INFO L225 Difference]: With dead ends: 46338 [2022-11-21 17:32:36,521 INFO L226 Difference]: Without dead ends: 32313 [2022-11-21 17:32:36,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-21 17:32:36,634 INFO L413 NwaCegarLoop]: 2771 mSDtfsCounter, 20590 mSDsluCounter, 9400 mSDsCounter, 0 mSdLazyCounter, 17143 mSolverCounterSat, 13146 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21025 SdHoareTripleChecker+Valid, 12171 SdHoareTripleChecker+Invalid, 30291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 13146 IncrementalHoareTripleChecker+Valid, 17143 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:32:36,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21025 Valid, 12171 Invalid, 30291 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [13146 Valid, 17143 Invalid, 2 Unknown, 0 Unchecked, 35.8s Time] [2022-11-21 17:32:36,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32313 states. [2022-11-21 17:32:38,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32313 to 28071. [2022-11-21 17:32:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28071 states, 20269 states have (on average 1.3690364596181361) internal successors, (27749), 20189 states have internal predecessors, (27749), 6480 states have call successors, (6480), 1042 states have call predecessors, (6480), 1321 states have return successors, (8271), 7039 states have call predecessors, (8271), 6479 states have call successors, (8271) [2022-11-21 17:32:39,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28071 states to 28071 states and 42500 transitions. [2022-11-21 17:32:39,312 INFO L78 Accepts]: Start accepts. Automaton has 28071 states and 42500 transitions. Word has length 174 [2022-11-21 17:32:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:32:39,313 INFO L495 AbstractCegarLoop]: Abstraction has 28071 states and 42500 transitions. [2022-11-21 17:32:39,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:32:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 28071 states and 42500 transitions. [2022-11-21 17:32:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-21 17:32:39,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:32:39,321 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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] [2022-11-21 17:32:39,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:32:39,321 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:32:39,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:32:39,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1364760766, now seen corresponding path program 1 times [2022-11-21 17:32:39,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:32:39,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903305322] [2022-11-21 17:32:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:32:39,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:32:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:32:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:32:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 17:32:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:32:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:32:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:32:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:32:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:32:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 17:32:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 17:32:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:32:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-21 17:32:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-21 17:32:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-21 17:32:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-21 17:32:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-21 17:32:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-21 17:32:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-21 17:32:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-21 17:32:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-21 17:32:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:32:40,328 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-21 17:32:40,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:32:40,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903305322] [2022-11-21 17:32:40,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903305322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:32:40,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:32:40,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 17:32:40,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63333114] [2022-11-21 17:32:40,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:32:40,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 17:32:40,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:32:40,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 17:32:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:32:40,331 INFO L87 Difference]: Start difference. First operand 28071 states and 42500 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:32:42,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:32:44,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:32:46,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:33:08,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:33:08,807 INFO L93 Difference]: Finished difference Result 48195 states and 73303 transitions. [2022-11-21 17:33:08,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 17:33:08,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 175 [2022-11-21 17:33:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:33:09,051 INFO L225 Difference]: With dead ends: 48195 [2022-11-21 17:33:09,051 INFO L226 Difference]: Without dead ends: 32334 [2022-11-21 17:33:09,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2022-11-21 17:33:09,135 INFO L413 NwaCegarLoop]: 2534 mSDtfsCounter, 10670 mSDsluCounter, 7915 mSDsCounter, 0 mSdLazyCounter, 12434 mSolverCounterSat, 6106 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10902 SdHoareTripleChecker+Valid, 10449 SdHoareTripleChecker+Invalid, 18543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6106 IncrementalHoareTripleChecker+Valid, 12434 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:33:09,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10902 Valid, 10449 Invalid, 18543 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6106 Valid, 12434 Invalid, 3 Unknown, 0 Unchecked, 26.4s Time] [2022-11-21 17:33:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32334 states. [2022-11-21 17:33:11,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32334 to 28087. [2022-11-21 17:33:11,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28087 states, 20285 states have (on average 1.368745378358393) internal successors, (27765), 20201 states have internal predecessors, (27765), 6476 states have call successors, (6476), 1046 states have call predecessors, (6476), 1325 states have return successors, (8267), 7039 states have call predecessors, (8267), 6475 states have call successors, (8267) [2022-11-21 17:33:11,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28087 states to 28087 states and 42508 transitions. [2022-11-21 17:33:11,671 INFO L78 Accepts]: Start accepts. Automaton has 28087 states and 42508 transitions. Word has length 175 [2022-11-21 17:33:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:33:11,673 INFO L495 AbstractCegarLoop]: Abstraction has 28087 states and 42508 transitions. [2022-11-21 17:33:11,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:33:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand 28087 states and 42508 transitions. [2022-11-21 17:33:11,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-21 17:33:11,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:33:11,681 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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] [2022-11-21 17:33:11,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:33:11,682 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:33:11,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:33:11,682 INFO L85 PathProgramCache]: Analyzing trace with hash 751107201, now seen corresponding path program 1 times [2022-11-21 17:33:11,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:33:11,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626272889] [2022-11-21 17:33:11,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:33:11,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:33:11,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:33:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:33:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:33:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 17:33:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:33:12,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:33:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:33:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:33:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:33:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:33:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:33:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:33:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 17:33:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:33:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 17:33:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:33:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-21 17:33:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-21 17:33:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-21 17:33:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-21 17:33:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-21 17:33:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-21 17:33:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-21 17:33:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-21 17:33:12,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-11-21 17:33:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:33:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-21 17:33:12,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:33:12,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626272889] [2022-11-21 17:33:12,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626272889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:33:12,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:33:12,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 17:33:12,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821063978] [2022-11-21 17:33:12,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:33:12,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 17:33:12,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:33:12,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 17:33:12,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:33:12,689 INFO L87 Difference]: Start difference. First operand 28087 states and 42508 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:33:14,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:33:16,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:33:18,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:33:55,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:33:55,943 INFO L93 Difference]: Finished difference Result 92696 states and 145349 transitions. [2022-11-21 17:33:55,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 17:33:55,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 172 [2022-11-21 17:33:55,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:33:56,492 INFO L225 Difference]: With dead ends: 92696 [2022-11-21 17:33:56,492 INFO L226 Difference]: Without dead ends: 64629 [2022-11-21 17:33:56,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-21 17:33:56,834 INFO L413 NwaCegarLoop]: 2819 mSDtfsCounter, 16766 mSDsluCounter, 10760 mSDsCounter, 0 mSdLazyCounter, 19775 mSolverCounterSat, 10425 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17192 SdHoareTripleChecker+Valid, 13579 SdHoareTripleChecker+Invalid, 30203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10425 IncrementalHoareTripleChecker+Valid, 19775 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2022-11-21 17:33:56,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17192 Valid, 13579 Invalid, 30203 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10425 Valid, 19775 Invalid, 3 Unknown, 0 Unchecked, 38.8s Time] [2022-11-21 17:33:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64629 states. [2022-11-21 17:34:00,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64629 to 57111. [2022-11-21 17:34:00,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57111 states, 41305 states have (on average 1.363926885364968) internal successors, (56337), 40917 states have internal predecessors, (56337), 13060 states have call successors, (13060), 2094 states have call predecessors, (13060), 2745 states have return successors, (18845), 14503 states have call predecessors, (18845), 13059 states have call successors, (18845) [2022-11-21 17:34:00,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57111 states to 57111 states and 88242 transitions. [2022-11-21 17:34:00,824 INFO L78 Accepts]: Start accepts. Automaton has 57111 states and 88242 transitions. Word has length 172 [2022-11-21 17:34:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:34:00,825 INFO L495 AbstractCegarLoop]: Abstraction has 57111 states and 88242 transitions. [2022-11-21 17:34:00,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 4 states have internal predecessors, (76), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:34:00,826 INFO L276 IsEmpty]: Start isEmpty. Operand 57111 states and 88242 transitions. [2022-11-21 17:34:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-21 17:34:00,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:34:00,832 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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] [2022-11-21 17:34:00,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:34:00,833 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:34:00,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:34:00,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1365130688, now seen corresponding path program 1 times [2022-11-21 17:34:00,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:34:00,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158104163] [2022-11-21 17:34:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:34:00,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:34:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:34:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:34:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 17:34:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:34:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:34:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:34:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:34:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:01,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:34:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 17:34:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 17:34:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-21 17:34:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-21 17:34:01,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-21 17:34:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-21 17:34:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-21 17:34:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-21 17:34:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:02,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-21 17:34:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:02,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-21 17:34:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:02,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-21 17:34:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-21 17:34:02,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:34:02,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158104163] [2022-11-21 17:34:02,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158104163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:34:02,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:34:02,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 17:34:02,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756742514] [2022-11-21 17:34:02,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:34:02,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 17:34:02,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:34:02,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 17:34:02,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:34:02,044 INFO L87 Difference]: Start difference. First operand 57111 states and 88242 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:34:04,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:34:06,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:34:08,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:34:47,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:34:47,722 INFO L93 Difference]: Finished difference Result 186348 states and 299383 transitions. [2022-11-21 17:34:47,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 17:34:47,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 173 [2022-11-21 17:34:47,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:34:48,885 INFO L225 Difference]: With dead ends: 186348 [2022-11-21 17:34:48,886 INFO L226 Difference]: Without dead ends: 129257 [2022-11-21 17:34:49,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2022-11-21 17:34:49,196 INFO L413 NwaCegarLoop]: 2803 mSDtfsCounter, 16762 mSDsluCounter, 10716 mSDsCounter, 0 mSdLazyCounter, 19766 mSolverCounterSat, 10463 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17186 SdHoareTripleChecker+Valid, 13519 SdHoareTripleChecker+Invalid, 30232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10463 IncrementalHoareTripleChecker+Valid, 19766 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2022-11-21 17:34:49,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17186 Valid, 13519 Invalid, 30232 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10463 Valid, 19766 Invalid, 3 Unknown, 0 Unchecked, 37.6s Time] [2022-11-21 17:34:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129257 states. [2022-11-21 17:34:56,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129257 to 115179. [2022-11-21 17:34:56,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115179 states, 83365 states have (on average 1.3614466502728964) internal successors, (113497), 82365 states have internal predecessors, (113497), 26224 states have call successors, (26224), 4194 states have call predecessors, (26224), 5589 states have return successors, (42727), 29431 states have call predecessors, (42727), 26223 states have call successors, (42727) [2022-11-21 17:34:58,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115179 states to 115179 states and 182448 transitions. [2022-11-21 17:34:58,301 INFO L78 Accepts]: Start accepts. Automaton has 115179 states and 182448 transitions. Word has length 173 [2022-11-21 17:34:58,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:34:58,302 INFO L495 AbstractCegarLoop]: Abstraction has 115179 states and 182448 transitions. [2022-11-21 17:34:58,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:34:58,302 INFO L276 IsEmpty]: Start isEmpty. Operand 115179 states and 182448 transitions. [2022-11-21 17:34:58,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-21 17:34:58,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:34:58,310 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 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] [2022-11-21 17:34:58,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:34:58,310 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:34:58,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:34:58,311 INFO L85 PathProgramCache]: Analyzing trace with hash -419346050, now seen corresponding path program 1 times [2022-11-21 17:34:58,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:34:58,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108657497] [2022-11-21 17:34:58,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:34:58,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:34:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:34:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:34:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 17:34:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:34:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:34:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:34:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-21 17:34:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-21 17:34:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-21 17:34:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:58,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-21 17:34:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:34:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-21 17:34:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-21 17:34:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-21 17:34:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-21 17:34:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-21 17:34:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-21 17:34:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-21 17:34:59,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-21 17:34:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-21 17:34:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:34:59,081 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-21 17:34:59,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:34:59,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108657497] [2022-11-21 17:34:59,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108657497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:34:59,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:34:59,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 17:34:59,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057867007] [2022-11-21 17:34:59,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:34:59,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 17:34:59,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:34:59,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 17:34:59,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:34:59,084 INFO L87 Difference]: Start difference. First operand 115179 states and 182448 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-21 17:35:01,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:35:03,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:35:05,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []