./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R --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 32bit --witnessprinter.graph.data.programhash 922981a69371fe79bea26dd37077d7dd588a5af1cfad53b27080b4988960097d --- 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-38b53e6 [2022-11-25 16:56:49,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:56:49,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:56:49,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:56:49,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:56:49,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:56:49,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:56:49,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:56:49,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:56:49,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:56:49,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:56:49,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:56:49,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:56:49,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:56:49,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:56:49,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:56:49,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:56:49,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:56:49,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:56:49,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:56:49,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:56:49,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:56:49,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:56:49,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:56:49,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:56:49,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:56:49,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:56:49,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:56:49,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:56:49,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:56:49,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:56:49,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:56:49,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:56:49,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:56:49,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:56:49,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:56:49,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:56:49,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:56:49,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:56:49,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:56:49,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:56:49,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 16:56:49,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:56:49,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:56:49,577 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:56:49,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:56:49,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:56:49,579 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:56:49,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:56:49,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:56:49,581 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:56:49,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:56:49,581 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:56:49,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:56:49,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:56:49,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:56:49,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:56:49,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:56:49,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:56:49,583 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:56:49,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:56:49,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:56:49,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:56:49,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:56:49,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:56:49,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:56:49,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:56:49,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:56:49,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:56:49,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:56:49,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:56:49,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:56:49,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:56:49,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:56:49,587 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:56:49,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:56:49,587 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 922981a69371fe79bea26dd37077d7dd588a5af1cfad53b27080b4988960097d [2022-11-25 16:56:49,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:56:49,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:56:49,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:56:49,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:56:49,832 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:56:49,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/email_spec4_product17.cil.c [2022-11-25 16:56:52,771 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:56:53,134 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:56:53,135 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/sv-benchmarks/c/product-lines/email_spec4_product17.cil.c [2022-11-25 16:56:53,163 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/data/2a6202943/5f37bb58ed2748b7957e5580b3364698/FLAG921c33e7a [2022-11-25 16:56:53,190 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/data/2a6202943/5f37bb58ed2748b7957e5580b3364698 [2022-11-25 16:56:53,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:56:53,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:56:53,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:56:53,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:56:53,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:56:53,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:56:53" (1/1) ... [2022-11-25 16:56:53,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161ac10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:53, skipping insertion in model container [2022-11-25 16:56:53,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:56:53" (1/1) ... [2022-11-25 16:56:53,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:56:53,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:56:53,460 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,663 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,668 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,677 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,733 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,743 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,745 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,759 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,801 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_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/sv-benchmarks/c/product-lines/email_spec4_product17.cil.c[45969,45982] [2022-11-25 16:56:53,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:56:53,871 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:56:53,886 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,920 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,921 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,923 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,928 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,930 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,930 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,932 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:56:53,950 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_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/sv-benchmarks/c/product-lines/email_spec4_product17.cil.c[45969,45982] [2022-11-25 16:56:53,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:56:54,013 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:56:54,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54 WrapperNode [2022-11-25 16:56:54,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:56:54,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:56:54,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:56:54,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:56:54,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,132 INFO L138 Inliner]: procedures = 127, calls = 208, calls flagged for inlining = 53, calls inlined = 46, statements flattened = 906 [2022-11-25 16:56:54,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:56:54,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:56:54,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:56:54,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:56:54,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,205 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:56:54,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:56:54,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:56:54,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:56:54,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (1/1) ... [2022-11-25 16:56:54,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:56:54,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:56:54,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:56:54,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:56:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2022-11-25 16:56:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2022-11-25 16:56:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-11-25 16:56:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-11-25 16:56:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-11-25 16:56:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-11-25 16:56:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2022-11-25 16:56:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2022-11-25 16:56:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-11-25 16:56:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-11-25 16:56:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-11-25 16:56:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-11-25 16:56:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-11-25 16:56:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-11-25 16:56:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-11-25 16:56:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-11-25 16:56:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2022-11-25 16:56:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2022-11-25 16:56:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-11-25 16:56:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-11-25 16:56:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-11-25 16:56:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-11-25 16:56:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-11-25 16:56:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-11-25 16:56:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-11-25 16:56:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:56:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2022-11-25 16:56:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2022-11-25 16:56:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-11-25 16:56:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-11-25 16:56:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-11-25 16:56:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-11-25 16:56:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-11-25 16:56:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-11-25 16:56:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-11-25 16:56:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-11-25 16:56:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-11-25 16:56:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-11-25 16:56:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-11-25 16:56:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-11-25 16:56:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-11-25 16:56:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-11-25 16:56:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:56:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-11-25 16:56:54,370 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-11-25 16:56:54,370 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-11-25 16:56:54,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-11-25 16:56:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:56:54,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:56:54,619 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:56:54,621 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:56:55,510 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:56:55,520 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:56:55,521 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 16:56:55,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:56:55 BoogieIcfgContainer [2022-11-25 16:56:55,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:56:55,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:56:55,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:56:55,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:56:55,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:56:53" (1/3) ... [2022-11-25 16:56:55,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ff999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:56:55, skipping insertion in model container [2022-11-25 16:56:55,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:56:54" (2/3) ... [2022-11-25 16:56:55,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ff999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:56:55, skipping insertion in model container [2022-11-25 16:56:55,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:56:55" (3/3) ... [2022-11-25 16:56:55,532 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product17.cil.c [2022-11-25 16:56:55,552 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:56:55,552 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 16:56:55,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:56:55,616 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;@6fdf2aee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:56:55,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 16:56:55,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 352 states, 278 states have (on average 1.5827338129496402) internal successors, (440), 281 states have internal predecessors, (440), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-25 16:56:55,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-25 16:56:55,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:56:55,651 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-11-25 16:56:55,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:56:55,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:55,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1657855527, now seen corresponding path program 1 times [2022-11-25 16:56:55,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:55,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698002831] [2022-11-25 16:56:55,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:55,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:56:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:56:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:56:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 16:56:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:56:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 16:56:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 16:56:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-25 16:56:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 16:56:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 16:56:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 16:56:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 16:56:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 16:56:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,617 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-25 16:56:56,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:56,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698002831] [2022-11-25 16:56:56,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698002831] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:56:56,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177267923] [2022-11-25 16:56:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:56,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:56:56,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:56:56,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:56:56,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 16:56:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:56,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 16:56:56,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:56:56,993 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 16:56:56,994 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:56:56,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177267923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:56,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:56:56,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-11-25 16:56:56,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915049834] [2022-11-25 16:56:56,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:57,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:56:57,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:57,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:56:57,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:56:57,055 INFO L87 Difference]: Start difference. First operand has 352 states, 278 states have (on average 1.5827338129496402) internal successors, (440), 281 states have internal predecessors, (440), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:56:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:56:57,152 INFO L93 Difference]: Finished difference Result 516 states and 778 transitions. [2022-11-25 16:56:57,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:56:57,154 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2022-11-25 16:56:57,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:56:57,169 INFO L225 Difference]: With dead ends: 516 [2022-11-25 16:56:57,169 INFO L226 Difference]: Without dead ends: 345 [2022-11-25 16:56:57,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:56:57,178 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:56:57,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:56:57,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-11-25 16:56:57,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2022-11-25 16:56:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 272 states have (on average 1.5772058823529411) internal successors, (429), 274 states have internal predecessors, (429), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-25 16:56:57,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 528 transitions. [2022-11-25 16:56:57,248 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 528 transitions. Word has length 101 [2022-11-25 16:56:57,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:56:57,250 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 528 transitions. [2022-11-25 16:56:57,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:56:57,251 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 528 transitions. [2022-11-25 16:56:57,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-25 16:56:57,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:56:57,257 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-11-25 16:56:57,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 16:56:57,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 16:56:57,465 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:56:57,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:57,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1378191731, now seen corresponding path program 1 times [2022-11-25 16:56:57,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:57,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890186094] [2022-11-25 16:56:57,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:57,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:56:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:56:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:56:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 16:56:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:56:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 16:56:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 16:56:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 16:56:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 16:56:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 16:56:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 16:56:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 16:56:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 16:56:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-25 16:56:57,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:57,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890186094] [2022-11-25 16:56:57,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890186094] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:56:57,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428846732] [2022-11-25 16:56:57,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:57,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:56:57,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:56:57,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:56:57,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 16:56:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:56:58,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:56:58,249 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 16:56:58,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:56:58,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428846732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:58,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:56:58,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-25 16:56:58,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199712169] [2022-11-25 16:56:58,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:58,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:56:58,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:58,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:56:58,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:56:58,257 INFO L87 Difference]: Start difference. First operand 345 states and 528 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:56:58,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:56:58,324 INFO L93 Difference]: Finished difference Result 506 states and 756 transitions. [2022-11-25 16:56:58,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:56:58,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2022-11-25 16:56:58,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:56:58,333 INFO L225 Difference]: With dead ends: 506 [2022-11-25 16:56:58,334 INFO L226 Difference]: Without dead ends: 348 [2022-11-25 16:56:58,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:56:58,341 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 1 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:56:58,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1050 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:56:58,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-11-25 16:56:58,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 347. [2022-11-25 16:56:58,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 274 states have (on average 1.572992700729927) internal successors, (431), 276 states have internal predecessors, (431), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2022-11-25 16:56:58,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 530 transitions. [2022-11-25 16:56:58,380 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 530 transitions. Word has length 102 [2022-11-25 16:56:58,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:56:58,380 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 530 transitions. [2022-11-25 16:56:58,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:56:58,381 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 530 transitions. [2022-11-25 16:56:58,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 16:56:58,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:56:58,386 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-11-25 16:56:58,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 16:56:58,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:56:58,593 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:56:58,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:58,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1246839004, now seen corresponding path program 1 times [2022-11-25 16:56:58,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:58,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834525789] [2022-11-25 16:56:58,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:58,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:56:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:56:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:56:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 16:56:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:56:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 16:56:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-25 16:56:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 16:56:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 16:56:58,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 16:56:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 16:56:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 16:56:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 16:56:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:58,885 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 16:56:58,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:58,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834525789] [2022-11-25 16:56:58,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834525789] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:56:58,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356123027] [2022-11-25 16:56:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:58,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:56:58,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:56:58,890 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:56:58,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 16:56:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:56:59,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:56:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 16:56:59,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:56:59,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356123027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:59,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:56:59,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-25 16:56:59,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915580375] [2022-11-25 16:56:59,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:59,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:56:59,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:59,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:56:59,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:56:59,255 INFO L87 Difference]: Start difference. First operand 347 states and 530 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:56:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:56:59,308 INFO L93 Difference]: Finished difference Result 737 states and 1144 transitions. [2022-11-25 16:56:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:56:59,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2022-11-25 16:56:59,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:56:59,316 INFO L225 Difference]: With dead ends: 737 [2022-11-25 16:56:59,316 INFO L226 Difference]: Without dead ends: 417 [2022-11-25 16:56:59,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:56:59,320 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 126 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:56:59,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1027 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:56:59,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-11-25 16:56:59,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 409. [2022-11-25 16:56:59,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 322 states have (on average 1.5900621118012421) internal successors, (512), 324 states have internal predecessors, (512), 64 states have call successors, (64), 22 states have call predecessors, (64), 22 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2022-11-25 16:56:59,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 639 transitions. [2022-11-25 16:56:59,380 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 639 transitions. Word has length 108 [2022-11-25 16:56:59,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:56:59,383 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 639 transitions. [2022-11-25 16:56:59,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:56:59,383 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 639 transitions. [2022-11-25 16:56:59,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-25 16:56:59,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:56:59,388 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-11-25 16:56:59,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 16:56:59,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-25 16:56:59,595 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:56:59,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:59,595 INFO L85 PathProgramCache]: Analyzing trace with hash 848512708, now seen corresponding path program 1 times [2022-11-25 16:56:59,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:59,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695420541] [2022-11-25 16:56:59,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:59,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:56:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:56:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:56:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-25 16:56:59,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:56:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 16:56:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 16:56:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 16:56:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 16:56:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 16:56:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 16:56:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 16:56:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 16:56:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 16:56:59,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:59,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695420541] [2022-11-25 16:56:59,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695420541] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:56:59,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389684843] [2022-11-25 16:56:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:59,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:56:59,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:56:59,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:56:59,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 16:57:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 16:57:00,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 16:57:00,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:00,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389684843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:00,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:57:00,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-11-25 16:57:00,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133608598] [2022-11-25 16:57:00,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:00,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:57:00,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:00,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:57:00,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:57:00,317 INFO L87 Difference]: Start difference. First operand 409 states and 639 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 16:57:00,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:00,408 INFO L93 Difference]: Finished difference Result 809 states and 1268 transitions. [2022-11-25 16:57:00,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:57:00,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2022-11-25 16:57:00,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:00,414 INFO L225 Difference]: With dead ends: 809 [2022-11-25 16:57:00,414 INFO L226 Difference]: Without dead ends: 411 [2022-11-25 16:57:00,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:00,420 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 144 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:00,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1909 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:00,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2022-11-25 16:57:00,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2022-11-25 16:57:00,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 323 states have (on average 1.588235294117647) internal successors, (513), 326 states have internal predecessors, (513), 64 states have call successors, (64), 22 states have call predecessors, (64), 23 states have return successors, (65), 62 states have call predecessors, (65), 63 states have call successors, (65) [2022-11-25 16:57:00,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 642 transitions. [2022-11-25 16:57:00,464 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 642 transitions. Word has length 109 [2022-11-25 16:57:00,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:00,468 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 642 transitions. [2022-11-25 16:57:00,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 16:57:00,469 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 642 transitions. [2022-11-25 16:57:00,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 16:57:00,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:00,477 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2022-11-25 16:57:00,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:00,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:00,690 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:00,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:00,691 INFO L85 PathProgramCache]: Analyzing trace with hash -2072094744, now seen corresponding path program 1 times [2022-11-25 16:57:00,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:00,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961393071] [2022-11-25 16:57:00,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:00,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:00,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 16:57:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 16:57:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 16:57:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 16:57:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 16:57:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 16:57:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 16:57:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 16:57:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 16:57:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:00,971 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 16:57:00,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:00,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961393071] [2022-11-25 16:57:00,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961393071] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:00,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112874734] [2022-11-25 16:57:00,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:00,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:00,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:00,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:00,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 16:57:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:57:01,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 16:57:01,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:01,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112874734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:01,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:57:01,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-11-25 16:57:01,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272715886] [2022-11-25 16:57:01,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:01,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:57:01,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:01,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:57:01,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:57:01,364 INFO L87 Difference]: Start difference. First operand 411 states and 642 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 16:57:01,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:01,455 INFO L93 Difference]: Finished difference Result 811 states and 1273 transitions. [2022-11-25 16:57:01,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:57:01,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2022-11-25 16:57:01,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:01,459 INFO L225 Difference]: With dead ends: 811 [2022-11-25 16:57:01,459 INFO L226 Difference]: Without dead ends: 413 [2022-11-25 16:57:01,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-25 16:57:01,461 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 143 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:01,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1898 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:01,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2022-11-25 16:57:01,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2022-11-25 16:57:01,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 324 states have (on average 1.5864197530864197) internal successors, (514), 328 states have internal predecessors, (514), 64 states have call successors, (64), 22 states have call predecessors, (64), 24 states have return successors, (70), 62 states have call predecessors, (70), 63 states have call successors, (70) [2022-11-25 16:57:01,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 648 transitions. [2022-11-25 16:57:01,495 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 648 transitions. Word has length 110 [2022-11-25 16:57:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:01,495 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 648 transitions. [2022-11-25 16:57:01,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 16:57:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 648 transitions. [2022-11-25 16:57:01,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 16:57:01,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:01,499 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:01,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:01,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:01,706 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:01,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:01,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2023506565, now seen corresponding path program 1 times [2022-11-25 16:57:01,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:01,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372076966] [2022-11-25 16:57:01,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:01,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 16:57:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 16:57:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 16:57:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 16:57:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 16:57:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 16:57:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 16:57:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 16:57:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 16:57:01,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:01,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372076966] [2022-11-25 16:57:01,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372076966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:01,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:01,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:57:01,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573521635] [2022-11-25 16:57:01,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:01,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:57:01,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:01,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:57:01,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:57:01,934 INFO L87 Difference]: Start difference. First operand 413 states and 648 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 16:57:04,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:04,187 INFO L93 Difference]: Finished difference Result 898 states and 1430 transitions. [2022-11-25 16:57:04,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:57:04,188 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2022-11-25 16:57:04,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:04,192 INFO L225 Difference]: With dead ends: 898 [2022-11-25 16:57:04,192 INFO L226 Difference]: Without dead ends: 508 [2022-11-25 16:57:04,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-25 16:57:04,194 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1287 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2201 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 2201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:04,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1134 Invalid, 2590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 2201 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 16:57:04,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-11-25 16:57:04,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 413. [2022-11-25 16:57:04,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 324 states have (on average 1.5864197530864197) internal successors, (514), 328 states have internal predecessors, (514), 64 states have call successors, (64), 22 states have call predecessors, (64), 24 states have return successors, (69), 62 states have call predecessors, (69), 63 states have call successors, (69) [2022-11-25 16:57:04,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 647 transitions. [2022-11-25 16:57:04,275 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 647 transitions. Word has length 111 [2022-11-25 16:57:04,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:04,275 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 647 transitions. [2022-11-25 16:57:04,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 16:57:04,276 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 647 transitions. [2022-11-25 16:57:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 16:57:04,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:04,278 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-25 16:57:04,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:57:04,279 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:04,279 INFO L85 PathProgramCache]: Analyzing trace with hash 520951879, now seen corresponding path program 2 times [2022-11-25 16:57:04,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:04,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12513556] [2022-11-25 16:57:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:04,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 16:57:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 16:57:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 16:57:04,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 16:57:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 16:57:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 16:57:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 16:57:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 16:57:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:04,488 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 16:57:04,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:04,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12513556] [2022-11-25 16:57:04,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12513556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:04,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:04,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:57:04,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16244123] [2022-11-25 16:57:04,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:04,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:57:04,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:04,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:57:04,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:57:04,491 INFO L87 Difference]: Start difference. First operand 413 states and 647 transitions. Second operand has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 16:57:06,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:06,775 INFO L93 Difference]: Finished difference Result 900 states and 1433 transitions. [2022-11-25 16:57:06,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:57:06,776 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2022-11-25 16:57:06,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:06,781 INFO L225 Difference]: With dead ends: 900 [2022-11-25 16:57:06,781 INFO L226 Difference]: Without dead ends: 510 [2022-11-25 16:57:06,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-25 16:57:06,784 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1281 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 2615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:06,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 1135 Invalid, 2615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 16:57:06,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-11-25 16:57:06,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 415. [2022-11-25 16:57:06,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 325 states have (on average 1.5846153846153845) internal successors, (515), 330 states have internal predecessors, (515), 64 states have call successors, (64), 22 states have call predecessors, (64), 25 states have return successors, (71), 62 states have call predecessors, (71), 63 states have call successors, (71) [2022-11-25 16:57:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 650 transitions. [2022-11-25 16:57:06,846 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 650 transitions. Word has length 112 [2022-11-25 16:57:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:06,847 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 650 transitions. [2022-11-25 16:57:06,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.625) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2022-11-25 16:57:06,848 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 650 transitions. [2022-11-25 16:57:06,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 16:57:06,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:06,852 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:06,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:57:06,852 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:06,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:06,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1254060874, now seen corresponding path program 1 times [2022-11-25 16:57:06,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:06,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906162952] [2022-11-25 16:57:06,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:06,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 16:57:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 16:57:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 16:57:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 16:57:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 16:57:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 16:57:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 16:57:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:07,192 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 16:57:07,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:07,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906162952] [2022-11-25 16:57:07,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906162952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:07,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:07,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:57:07,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790463193] [2022-11-25 16:57:07,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:07,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:57:07,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:07,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:57:07,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:57:07,195 INFO L87 Difference]: Start difference. First operand 415 states and 650 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-25 16:57:10,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:10,132 INFO L93 Difference]: Finished difference Result 898 states and 1428 transitions. [2022-11-25 16:57:10,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:57:10,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 113 [2022-11-25 16:57:10,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:10,136 INFO L225 Difference]: With dead ends: 898 [2022-11-25 16:57:10,136 INFO L226 Difference]: Without dead ends: 510 [2022-11-25 16:57:10,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-25 16:57:10,139 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1422 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 3727 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 4162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 3727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:10,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 1485 Invalid, 4162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 3727 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 16:57:10,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2022-11-25 16:57:10,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 415. [2022-11-25 16:57:10,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 325 states have (on average 1.5846153846153845) internal successors, (515), 330 states have internal predecessors, (515), 64 states have call successors, (64), 22 states have call predecessors, (64), 25 states have return successors, (70), 62 states have call predecessors, (70), 63 states have call successors, (70) [2022-11-25 16:57:10,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 649 transitions. [2022-11-25 16:57:10,184 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 649 transitions. Word has length 113 [2022-11-25 16:57:10,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:10,185 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 649 transitions. [2022-11-25 16:57:10,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-25 16:57:10,185 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 649 transitions. [2022-11-25 16:57:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 16:57:10,188 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:10,188 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-25 16:57:10,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:57:10,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:10,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:10,189 INFO L85 PathProgramCache]: Analyzing trace with hash 180252063, now seen corresponding path program 2 times [2022-11-25 16:57:10,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:10,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697813941] [2022-11-25 16:57:10,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:10,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:10,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 16:57:10,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-25 16:57:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 16:57:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 16:57:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 16:57:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-25 16:57:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 16:57:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 16:57:10,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:10,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697813941] [2022-11-25 16:57:10,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697813941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:10,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:10,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:57:10,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129530000] [2022-11-25 16:57:10,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:10,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:57:10,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:10,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:57:10,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:57:10,497 INFO L87 Difference]: Start difference. First operand 415 states and 649 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-25 16:57:13,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:13,419 INFO L93 Difference]: Finished difference Result 900 states and 1434 transitions. [2022-11-25 16:57:13,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:57:13,420 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 114 [2022-11-25 16:57:13,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:13,424 INFO L225 Difference]: With dead ends: 900 [2022-11-25 16:57:13,424 INFO L226 Difference]: Without dead ends: 512 [2022-11-25 16:57:13,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-11-25 16:57:13,430 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1417 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 3753 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 4187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 3753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:13,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 1485 Invalid, 4187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 3753 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 16:57:13,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-11-25 16:57:13,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 417. [2022-11-25 16:57:13,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 326 states have (on average 1.5828220858895705) internal successors, (516), 332 states have internal predecessors, (516), 64 states have call successors, (64), 22 states have call predecessors, (64), 26 states have return successors, (75), 62 states have call predecessors, (75), 63 states have call successors, (75) [2022-11-25 16:57:13,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 655 transitions. [2022-11-25 16:57:13,480 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 655 transitions. Word has length 114 [2022-11-25 16:57:13,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:13,481 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 655 transitions. [2022-11-25 16:57:13,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-25 16:57:13,482 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 655 transitions. [2022-11-25 16:57:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-25 16:57:13,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:13,484 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:13,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 16:57:13,485 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:13,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:13,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1166459345, now seen corresponding path program 1 times [2022-11-25 16:57:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:13,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001878221] [2022-11-25 16:57:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:13,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 16:57:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 16:57:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 16:57:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 16:57:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 16:57:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 16:57:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 16:57:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:13,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:13,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001878221] [2022-11-25 16:57:13,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001878221] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:13,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105741555] [2022-11-25 16:57:13,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:13,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:13,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:13,650 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:13,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 16:57:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:13,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:57:13,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:13,963 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:13,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:57:14,047 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:14,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105741555] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:57:14,048 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:57:14,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-11-25 16:57:14,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842637597] [2022-11-25 16:57:14,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:57:14,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:57:14,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:14,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:57:14,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:57:14,052 INFO L87 Difference]: Start difference. First operand 417 states and 655 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 16:57:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:16,180 INFO L93 Difference]: Finished difference Result 1087 states and 1803 transitions. [2022-11-25 16:57:16,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:57:16,181 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 115 [2022-11-25 16:57:16,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:16,186 INFO L225 Difference]: With dead ends: 1087 [2022-11-25 16:57:16,186 INFO L226 Difference]: Without dead ends: 929 [2022-11-25 16:57:16,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2022-11-25 16:57:16,188 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 1739 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:16,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 1488 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 16:57:16,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2022-11-25 16:57:16,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 810. [2022-11-25 16:57:16,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 640 states have (on average 1.6390625) internal successors, (1049), 646 states have internal predecessors, (1049), 143 states have call successors, (143), 22 states have call predecessors, (143), 26 states have return successors, (164), 141 states have call predecessors, (164), 142 states have call successors, (164) [2022-11-25 16:57:16,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1356 transitions. [2022-11-25 16:57:16,264 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1356 transitions. Word has length 115 [2022-11-25 16:57:16,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:16,265 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 1356 transitions. [2022-11-25 16:57:16,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 16:57:16,265 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1356 transitions. [2022-11-25 16:57:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-25 16:57:16,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:16,292 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-11-25 16:57:16,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-25 16:57:16,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67fd0c5b-6cf5-42c6-9a66-4ec48f164f43/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 16:57:16,499 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:16,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:16,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1381729172, now seen corresponding path program 1 times [2022-11-25 16:57:16,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:16,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114919894] [2022-11-25 16:57:16,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:16,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:16,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 16:57:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 16:57:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 16:57:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 16:57:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-25 16:57:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 16:57:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 16:57:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:16,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:16,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114919894] [2022-11-25 16:57:16,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114919894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:16,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:16,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:57:16,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820635929] [2022-11-25 16:57:16,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:16,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:16,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:16,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:16,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:16,729 INFO L87 Difference]: Start difference. First operand 810 states and 1356 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:18,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:18,580 INFO L93 Difference]: Finished difference Result 2045 states and 3508 transitions. [2022-11-25 16:57:18,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:57:18,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2022-11-25 16:57:18,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:18,591 INFO L225 Difference]: With dead ends: 2045 [2022-11-25 16:57:18,592 INFO L226 Difference]: Without dead ends: 1303 [2022-11-25 16:57:18,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:18,595 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1267 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:18,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 975 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 16:57:18,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-11-25 16:57:18,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1200. [2022-11-25 16:57:18,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 951 states have (on average 1.6498422712933754) internal successors, (1569), 957 states have internal predecessors, (1569), 222 states have call successors, (222), 22 states have call predecessors, (222), 26 states have return successors, (253), 220 states have call predecessors, (253), 221 states have call successors, (253) [2022-11-25 16:57:18,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 2044 transitions. [2022-11-25 16:57:18,704 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 2044 transitions. Word has length 121 [2022-11-25 16:57:18,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:18,704 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 2044 transitions. [2022-11-25 16:57:18,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:18,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 2044 transitions. [2022-11-25 16:57:18,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 16:57:18,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:18,713 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:18,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 16:57:18,713 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:18,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:18,714 INFO L85 PathProgramCache]: Analyzing trace with hash 920878545, now seen corresponding path program 1 times [2022-11-25 16:57:18,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:18,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764405645] [2022-11-25 16:57:18,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:18,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 16:57:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 16:57:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 16:57:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 16:57:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-25 16:57:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 16:57:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 16:57:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:18,843 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:18,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:18,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764405645] [2022-11-25 16:57:18,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764405645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:18,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:18,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:57:18,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562874664] [2022-11-25 16:57:18,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:18,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:18,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:18,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:18,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:18,845 INFO L87 Difference]: Start difference. First operand 1200 states and 2044 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:20,735 INFO L93 Difference]: Finished difference Result 2994 states and 5182 transitions. [2022-11-25 16:57:20,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:57:20,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2022-11-25 16:57:20,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:20,746 INFO L225 Difference]: With dead ends: 2994 [2022-11-25 16:57:20,747 INFO L226 Difference]: Without dead ends: 1915 [2022-11-25 16:57:20,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:20,752 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 1268 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:20,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 951 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 16:57:20,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2022-11-25 16:57:20,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1812. [2022-11-25 16:57:20,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1812 states, 1444 states have (on average 1.6565096952908587) internal successors, (2392), 1450 states have internal predecessors, (2392), 341 states have call successors, (341), 22 states have call predecessors, (341), 26 states have return successors, (372), 339 states have call predecessors, (372), 340 states have call successors, (372) [2022-11-25 16:57:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 3105 transitions. [2022-11-25 16:57:20,960 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 3105 transitions. Word has length 122 [2022-11-25 16:57:20,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:20,960 INFO L495 AbstractCegarLoop]: Abstraction has 1812 states and 3105 transitions. [2022-11-25 16:57:20,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:20,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 3105 transitions. [2022-11-25 16:57:20,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-25 16:57:20,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:20,971 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:20,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 16:57:20,972 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:20,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:20,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2091931118, now seen corresponding path program 1 times [2022-11-25 16:57:20,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:20,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448092035] [2022-11-25 16:57:20,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:20,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 16:57:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 16:57:21,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 16:57:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 16:57:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 16:57:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 16:57:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 16:57:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:21,101 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:21,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:21,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448092035] [2022-11-25 16:57:21,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448092035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:21,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:21,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:57:21,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262393472] [2022-11-25 16:57:21,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:21,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:21,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:21,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:21,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:21,105 INFO L87 Difference]: Start difference. First operand 1812 states and 3105 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:23,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:23,028 INFO L93 Difference]: Finished difference Result 4419 states and 7716 transitions. [2022-11-25 16:57:23,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:57:23,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2022-11-25 16:57:23,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:23,046 INFO L225 Difference]: With dead ends: 4419 [2022-11-25 16:57:23,046 INFO L226 Difference]: Without dead ends: 2853 [2022-11-25 16:57:23,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:23,053 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 1265 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:23,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 952 Invalid, 1780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 16:57:23,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2022-11-25 16:57:23,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2750. [2022-11-25 16:57:23,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2220 states have (on average 1.662162162162162) internal successors, (3690), 2226 states have internal predecessors, (3690), 503 states have call successors, (503), 22 states have call predecessors, (503), 26 states have return successors, (550), 501 states have call predecessors, (550), 502 states have call successors, (550) [2022-11-25 16:57:23,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 4743 transitions. [2022-11-25 16:57:23,356 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 4743 transitions. Word has length 123 [2022-11-25 16:57:23,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:23,357 INFO L495 AbstractCegarLoop]: Abstraction has 2750 states and 4743 transitions. [2022-11-25 16:57:23,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:23,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 4743 transitions. [2022-11-25 16:57:23,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-25 16:57:23,370 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:23,370 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:23,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 16:57:23,371 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:23,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:23,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1608328082, now seen corresponding path program 1 times [2022-11-25 16:57:23,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:23,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911969243] [2022-11-25 16:57:23,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:23,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 16:57:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 16:57:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 16:57:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 16:57:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 16:57:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 16:57:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 16:57:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:23,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:23,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911969243] [2022-11-25 16:57:23,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911969243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:23,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:23,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:57:23,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618738566] [2022-11-25 16:57:23,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:23,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:23,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:23,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:23,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:23,503 INFO L87 Difference]: Start difference. First operand 2750 states and 4743 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:25,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:25,492 INFO L93 Difference]: Finished difference Result 6668 states and 11725 transitions. [2022-11-25 16:57:25,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:57:25,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2022-11-25 16:57:25,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:25,518 INFO L225 Difference]: With dead ends: 6668 [2022-11-25 16:57:25,518 INFO L226 Difference]: Without dead ends: 4368 [2022-11-25 16:57:25,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:25,528 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1262 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:25,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 953 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 16:57:25,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4368 states. [2022-11-25 16:57:25,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4368 to 4265. [2022-11-25 16:57:25,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4265 states, 3490 states have (on average 1.666189111747851) internal successors, (5815), 3496 states have internal predecessors, (5815), 748 states have call successors, (748), 22 states have call predecessors, (748), 26 states have return successors, (821), 746 states have call predecessors, (821), 747 states have call successors, (821) [2022-11-25 16:57:25,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4265 states to 4265 states and 7384 transitions. [2022-11-25 16:57:25,963 INFO L78 Accepts]: Start accepts. Automaton has 4265 states and 7384 transitions. Word has length 124 [2022-11-25 16:57:25,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:25,964 INFO L495 AbstractCegarLoop]: Abstraction has 4265 states and 7384 transitions. [2022-11-25 16:57:25,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:25,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4265 states and 7384 transitions. [2022-11-25 16:57:25,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-25 16:57:25,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:25,980 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:25,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 16:57:25,980 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:25,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:25,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1442625674, now seen corresponding path program 1 times [2022-11-25 16:57:25,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:25,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142490904] [2022-11-25 16:57:25,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:25,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 16:57:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 16:57:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 16:57:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 16:57:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 16:57:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 16:57:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 16:57:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:26,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:26,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142490904] [2022-11-25 16:57:26,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142490904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:26,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:26,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:57:26,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068905976] [2022-11-25 16:57:26,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:26,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:26,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:26,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:26,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:26,111 INFO L87 Difference]: Start difference. First operand 4265 states and 7384 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:28,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:28,286 INFO L93 Difference]: Finished difference Result 10684 states and 18837 transitions. [2022-11-25 16:57:28,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:57:28,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2022-11-25 16:57:28,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:28,332 INFO L225 Difference]: With dead ends: 10684 [2022-11-25 16:57:28,332 INFO L226 Difference]: Without dead ends: 7101 [2022-11-25 16:57:28,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:28,345 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1262 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:28,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 977 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 16:57:28,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7101 states. [2022-11-25 16:57:29,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7101 to 6998. [2022-11-25 16:57:29,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6998 states, 5730 states have (on average 1.6614310645724257) internal successors, (9520), 5736 states have internal predecessors, (9520), 1241 states have call successors, (1241), 22 states have call predecessors, (1241), 26 states have return successors, (1358), 1239 states have call predecessors, (1358), 1240 states have call successors, (1358) [2022-11-25 16:57:29,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6998 states to 6998 states and 12119 transitions. [2022-11-25 16:57:29,191 INFO L78 Accepts]: Start accepts. Automaton has 6998 states and 12119 transitions. Word has length 125 [2022-11-25 16:57:29,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:29,192 INFO L495 AbstractCegarLoop]: Abstraction has 6998 states and 12119 transitions. [2022-11-25 16:57:29,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:29,193 INFO L276 IsEmpty]: Start isEmpty. Operand 6998 states and 12119 transitions. [2022-11-25 16:57:29,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-25 16:57:29,216 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:29,217 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:29,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 16:57:29,217 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:29,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:29,218 INFO L85 PathProgramCache]: Analyzing trace with hash -29302538, now seen corresponding path program 1 times [2022-11-25 16:57:29,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:29,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248045338] [2022-11-25 16:57:29,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:29,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 16:57:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 16:57:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 16:57:29,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 16:57:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 16:57:29,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 16:57:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-25 16:57:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:29,361 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:29,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:29,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248045338] [2022-11-25 16:57:29,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248045338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:29,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:29,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:57:29,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97609485] [2022-11-25 16:57:29,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:29,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:29,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:29,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:29,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:29,363 INFO L87 Difference]: Start difference. First operand 6998 states and 12119 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:31,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:31,806 INFO L93 Difference]: Finished difference Result 17824 states and 31409 transitions. [2022-11-25 16:57:31,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:57:31,807 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2022-11-25 16:57:31,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:31,860 INFO L225 Difference]: With dead ends: 17824 [2022-11-25 16:57:31,860 INFO L226 Difference]: Without dead ends: 11885 [2022-11-25 16:57:31,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:31,882 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1259 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:31,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 958 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 16:57:31,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11885 states. [2022-11-25 16:57:33,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11885 to 11782. [2022-11-25 16:57:33,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11782 states, 9692 states have (on average 1.660957490713991) internal successors, (16098), 9698 states have internal predecessors, (16098), 2063 states have call successors, (2063), 22 states have call predecessors, (2063), 26 states have return successors, (2258), 2061 states have call predecessors, (2258), 2062 states have call successors, (2258) [2022-11-25 16:57:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11782 states to 11782 states and 20419 transitions. [2022-11-25 16:57:33,317 INFO L78 Accepts]: Start accepts. Automaton has 11782 states and 20419 transitions. Word has length 126 [2022-11-25 16:57:33,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:33,317 INFO L495 AbstractCegarLoop]: Abstraction has 11782 states and 20419 transitions. [2022-11-25 16:57:33,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:33,318 INFO L276 IsEmpty]: Start isEmpty. Operand 11782 states and 20419 transitions. [2022-11-25 16:57:33,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 16:57:33,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:33,342 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:33,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 16:57:33,343 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:33,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:33,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1035678700, now seen corresponding path program 1 times [2022-11-25 16:57:33,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:33,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612855276] [2022-11-25 16:57:33,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:33,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:33,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 16:57:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 16:57:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 16:57:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 16:57:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 16:57:33,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-25 16:57:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 16:57:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:33,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:33,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612855276] [2022-11-25 16:57:33,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612855276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:33,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:33,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:57:33,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551189445] [2022-11-25 16:57:33,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:33,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:33,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:33,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:33,474 INFO L87 Difference]: Start difference. First operand 11782 states and 20419 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:36,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:36,141 INFO L93 Difference]: Finished difference Result 28257 states and 49534 transitions. [2022-11-25 16:57:36,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:57:36,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2022-11-25 16:57:36,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:36,223 INFO L225 Difference]: With dead ends: 28257 [2022-11-25 16:57:36,224 INFO L226 Difference]: Without dead ends: 18478 [2022-11-25 16:57:36,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:36,258 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 1252 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:36,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 928 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 16:57:36,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18478 states. [2022-11-25 16:57:37,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18478 to 18375. [2022-11-25 16:57:37,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18375 states, 15082 states have (on average 1.6353268797241745) internal successors, (24664), 15088 states have internal predecessors, (24664), 3266 states have call successors, (3266), 22 states have call predecessors, (3266), 26 states have return successors, (3605), 3264 states have call predecessors, (3605), 3265 states have call successors, (3605) [2022-11-25 16:57:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18375 states to 18375 states and 31535 transitions. [2022-11-25 16:57:38,066 INFO L78 Accepts]: Start accepts. Automaton has 18375 states and 31535 transitions. Word has length 127 [2022-11-25 16:57:38,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:38,067 INFO L495 AbstractCegarLoop]: Abstraction has 18375 states and 31535 transitions. [2022-11-25 16:57:38,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 18375 states and 31535 transitions. [2022-11-25 16:57:38,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-25 16:57:38,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:38,093 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:38,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 16:57:38,094 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:38,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:38,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1124735575, now seen corresponding path program 1 times [2022-11-25 16:57:38,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:38,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365844054] [2022-11-25 16:57:38,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:38,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 16:57:38,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 16:57:38,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 16:57:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 16:57:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 16:57:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 16:57:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 16:57:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:38,218 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:38,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:38,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365844054] [2022-11-25 16:57:38,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365844054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:38,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:38,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:57:38,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348248935] [2022-11-25 16:57:38,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:38,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:38,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:38,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:38,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:38,223 INFO L87 Difference]: Start difference. First operand 18375 states and 31535 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:42,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:42,401 INFO L93 Difference]: Finished difference Result 48679 states and 85038 transitions. [2022-11-25 16:57:42,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:57:42,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2022-11-25 16:57:42,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:42,574 INFO L225 Difference]: With dead ends: 48679 [2022-11-25 16:57:42,574 INFO L226 Difference]: Without dead ends: 32914 [2022-11-25 16:57:42,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:42,632 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 1256 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:42,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 957 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 16:57:42,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32914 states. [2022-11-25 16:57:45,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32914 to 32811. [2022-11-25 16:57:45,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32811 states, 27068 states have (on average 1.6318531106842027) internal successors, (44171), 27074 states have internal predecessors, (44171), 5716 states have call successors, (5716), 22 states have call predecessors, (5716), 26 states have return successors, (6329), 5714 states have call predecessors, (6329), 5715 states have call successors, (6329) [2022-11-25 16:57:45,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32811 states to 32811 states and 56216 transitions. [2022-11-25 16:57:45,517 INFO L78 Accepts]: Start accepts. Automaton has 32811 states and 56216 transitions. Word has length 128 [2022-11-25 16:57:45,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:45,518 INFO L495 AbstractCegarLoop]: Abstraction has 32811 states and 56216 transitions. [2022-11-25 16:57:45,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 32811 states and 56216 transitions. [2022-11-25 16:57:45,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-11-25 16:57:45,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:45,557 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:45,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 16:57:45,557 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:45,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:45,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1111942246, now seen corresponding path program 1 times [2022-11-25 16:57:45,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:45,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753877421] [2022-11-25 16:57:45,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:45,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 16:57:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 16:57:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 16:57:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-25 16:57:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 16:57:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 16:57:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-25 16:57:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:45,727 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:45,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:45,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753877421] [2022-11-25 16:57:45,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753877421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:45,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:45,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:57:45,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410650396] [2022-11-25 16:57:45,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:45,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:45,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:45,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:45,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:45,731 INFO L87 Difference]: Start difference. First operand 32811 states and 56216 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:51,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:51,638 INFO L93 Difference]: Finished difference Result 89576 states and 155672 transitions. [2022-11-25 16:57:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:57:51,639 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2022-11-25 16:57:51,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:51,871 INFO L225 Difference]: With dead ends: 89576 [2022-11-25 16:57:51,871 INFO L226 Difference]: Without dead ends: 60251 [2022-11-25 16:57:52,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:57:52,181 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 1252 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1270 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:52,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1270 Valid, 964 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 16:57:52,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60251 states. [2022-11-25 16:57:56,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60251 to 60148. [2022-11-25 16:57:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60148 states, 49892 states have (on average 1.627395173574922) internal successors, (81194), 49898 states have internal predecessors, (81194), 10229 states have call successors, (10229), 22 states have call predecessors, (10229), 26 states have return successors, (11374), 10227 states have call predecessors, (11374), 10228 states have call successors, (11374) [2022-11-25 16:57:57,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60148 states to 60148 states and 102797 transitions. [2022-11-25 16:57:57,094 INFO L78 Accepts]: Start accepts. Automaton has 60148 states and 102797 transitions. Word has length 129 [2022-11-25 16:57:57,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:57,095 INFO L495 AbstractCegarLoop]: Abstraction has 60148 states and 102797 transitions. [2022-11-25 16:57:57,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 16:57:57,095 INFO L276 IsEmpty]: Start isEmpty. Operand 60148 states and 102797 transitions. [2022-11-25 16:57:57,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-25 16:57:57,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:57,127 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:57,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 16:57:57,127 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:57:57,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:57,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1798621847, now seen corresponding path program 1 times [2022-11-25 16:57:57,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:57,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995561723] [2022-11-25 16:57:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:57,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 16:57:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 16:57:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 16:57:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 16:57:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 16:57:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-25 16:57:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-25 16:57:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 16:57:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 16:57:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 16:57:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 16:57:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-25 16:57:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 16:57:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:57,244 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-25 16:57:57,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:57,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995561723] [2022-11-25 16:57:57,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995561723] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:57,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:57,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:57:57,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869240518] [2022-11-25 16:57:57,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:57,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 16:57:57,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:57,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 16:57:57,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:57:57,248 INFO L87 Difference]: Start difference. First operand 60148 states and 102797 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13)