./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8 --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 2214b99fc6848bca0f24e9e72f44d1848092675b0f72a15c952711ed7656fcb1 --- 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-2329fc7 [2022-12-13 15:36:21,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:36:21,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:36:21,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:36:21,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:36:21,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:36:21,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:36:21,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:36:21,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:36:21,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:36:21,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:36:21,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:36:21,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:36:21,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:36:21,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:36:21,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:36:21,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:36:21,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:36:21,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:36:21,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:36:21,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:36:21,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:36:21,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:36:21,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:36:21,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:36:21,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:36:21,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:36:21,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:36:21,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:36:21,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:36:21,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:36:21,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:36:21,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:36:21,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:36:21,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:36:21,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:36:21,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:36:21,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:36:21,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:36:21,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:36:21,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:36:21,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:36:21,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:36:21,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:36:21,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:36:21,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:36:21,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:36:21,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:36:21,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:36:21,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:36:21,991 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:36:21,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:36:21,991 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:36:21,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:36:21,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:36:21,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:36:21,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:36:21,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:36:21,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:36:21,992 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:36:21,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:36:21,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:36:21,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:36:21,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:36:21,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:36:21,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:36:21,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:36:21,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:36:21,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:36:21,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:36:21,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:36:21,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:36:21,993 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:36:21,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:36:21,993 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:36:21,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:36:21,994 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:36:21,994 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_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2214b99fc6848bca0f24e9e72f44d1848092675b0f72a15c952711ed7656fcb1 [2022-12-13 15:36:22,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:36:22,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:36:22,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:36:22,179 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:36:22,179 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:36:22,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/email_spec0_product26.cil.c [2022-12-13 15:36:24,789 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:36:24,971 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:36:24,972 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c [2022-12-13 15:36:24,983 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/data/40f869fd7/b4ea10ec3d5a47f78d1c0c869183f72c/FLAGd6ffdb17c [2022-12-13 15:36:24,993 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/data/40f869fd7/b4ea10ec3d5a47f78d1c0c869183f72c [2022-12-13 15:36:24,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:36:24,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:36:24,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:36:24,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:36:25,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:36:25,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:36:24" (1/1) ... [2022-12-13 15:36:25,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d43e646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25, skipping insertion in model container [2022-12-13 15:36:25,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:36:24" (1/1) ... [2022-12-13 15:36:25,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:36:25,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:36:25,191 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,203 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,203 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,205 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,219 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,221 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,289 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,290 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,293 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,355 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,384 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_95c02666-5cef-4835-b6c6-4b93f826c4c2/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c[63882,63895] [2022-12-13 15:36:25,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:36:25,396 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:36:25,406 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,408 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,409 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,410 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,414 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,415 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,423 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,424 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,426 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,451 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:36:25,461 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_95c02666-5cef-4835-b6c6-4b93f826c4c2/sv-benchmarks/c/product-lines/email_spec0_product26.cil.c[63882,63895] [2022-12-13 15:36:25,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:36:25,481 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:36:25,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25 WrapperNode [2022-12-13 15:36:25,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:36:25,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:36:25,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:36:25,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:36:25,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,555 INFO L138 Inliner]: procedures = 131, calls = 224, calls flagged for inlining = 59, calls inlined = 56, statements flattened = 1086 [2022-12-13 15:36:25,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:36:25,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:36:25,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:36:25,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:36:25,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,608 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:36:25,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:36:25,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:36:25,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:36:25,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (1/1) ... [2022-12-13 15:36:25,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:36:25,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:36:25,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:36:25,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:36:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-13 15:36:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-13 15:36:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2022-12-13 15:36:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2022-12-13 15:36:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-13 15:36:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-13 15:36:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2022-12-13 15:36:25,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2022-12-13 15:36:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-13 15:36:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-13 15:36:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-13 15:36:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-13 15:36:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-13 15:36:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-13 15:36:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-13 15:36:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-13 15:36:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2022-12-13 15:36:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2022-12-13 15:36:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2022-12-13 15:36:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2022-12-13 15:36:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2022-12-13 15:36:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2022-12-13 15:36:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-13 15:36:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-13 15:36:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-13 15:36:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-13 15:36:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-13 15:36:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-13 15:36:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-13 15:36:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:36:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-13 15:36:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-13 15:36:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2022-12-13 15:36:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2022-12-13 15:36:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2022-12-13 15:36:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2022-12-13 15:36:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-13 15:36:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-13 15:36:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-13 15:36:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-13 15:36:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2022-12-13 15:36:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2022-12-13 15:36:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2022-12-13 15:36:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2022-12-13 15:36:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-13 15:36:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-13 15:36:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:36:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2022-12-13 15:36:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2022-12-13 15:36:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-13 15:36:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-13 15:36:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:36:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:36:25,839 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:36:25,841 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:36:26,415 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:36:26,426 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:36:26,426 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:36:26,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:36:26 BoogieIcfgContainer [2022-12-13 15:36:26,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:36:26,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:36:26,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:36:26,447 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:36:26,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:36:24" (1/3) ... [2022-12-13 15:36:26,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b67ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:36:26, skipping insertion in model container [2022-12-13 15:36:26,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:36:25" (2/3) ... [2022-12-13 15:36:26,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b67ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:36:26, skipping insertion in model container [2022-12-13 15:36:26,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:36:26" (3/3) ... [2022-12-13 15:36:26,449 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product26.cil.c [2022-12-13 15:36:26,462 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:36:26,463 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 15:36:26,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:36:26,511 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;@2f48806a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:36:26,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 15:36:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 312 states have (on average 1.560897435897436) internal successors, (487), 317 states have internal predecessors, (487), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2022-12-13 15:36:26,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 15:36:26,531 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:26,531 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:26,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:26,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:26,536 INFO L85 PathProgramCache]: Analyzing trace with hash -734871692, now seen corresponding path program 1 times [2022-12-13 15:36:26,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:26,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382834467] [2022-12-13 15:36:26,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:26,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:26,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:26,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:26,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 15:36:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:26,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 15:36:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:36:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:26,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 15:36:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:26,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 15:36:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:26,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 15:36:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:26,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 15:36:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 15:36:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:36:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 15:36:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:36:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 15:36:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 15:36:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 15:36:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 15:36:27,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:27,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382834467] [2022-12-13 15:36:27,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382834467] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:36:27,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291805248] [2022-12-13 15:36:27,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:27,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:27,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:36:27,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:36:27,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 15:36:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1262 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 15:36:27,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:36:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-13 15:36:27,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:36:27,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291805248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:27,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:36:27,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2022-12-13 15:36:27,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549281366] [2022-12-13 15:36:27,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:27,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:36:27,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:27,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:36:27,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:36:27,300 INFO L87 Difference]: Start difference. First operand has 400 states, 312 states have (on average 1.560897435897436) internal successors, (487), 317 states have internal predecessors, (487), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 15:36:27,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:27,346 INFO L93 Difference]: Finished difference Result 602 states and 904 transitions. [2022-12-13 15:36:27,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:36:27,347 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2022-12-13 15:36:27,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:27,357 INFO L225 Difference]: With dead ends: 602 [2022-12-13 15:36:27,357 INFO L226 Difference]: Without dead ends: 393 [2022-12-13 15:36:27,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:36:27,363 INFO L413 NwaCegarLoop]: 607 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, 607 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 [2022-12-13 15:36:27,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:36:27,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-12-13 15:36:27,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-12-13 15:36:27,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 306 states have (on average 1.5555555555555556) internal successors, (476), 310 states have internal predecessors, (476), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-12-13 15:36:27,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 599 transitions. [2022-12-13 15:36:27,413 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 599 transitions. Word has length 147 [2022-12-13 15:36:27,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:27,415 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 599 transitions. [2022-12-13 15:36:27,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 15:36:27,415 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 599 transitions. [2022-12-13 15:36:27,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-12-13 15:36:27,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:27,419 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:27,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-13 15:36:27,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:27,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:27,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:27,623 INFO L85 PathProgramCache]: Analyzing trace with hash 125672812, now seen corresponding path program 1 times [2022-12-13 15:36:27,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:27,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525302381] [2022-12-13 15:36:27,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:27,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 15:36:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 15:36:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:36:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 15:36:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 15:36:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 15:36:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 15:36:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 15:36:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 15:36:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 15:36:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 15:36:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-12-13 15:36:28,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:28,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525302381] [2022-12-13 15:36:28,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525302381] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:36:28,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043380530] [2022-12-13 15:36:28,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:28,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:28,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:36:28,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:36:28,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 15:36:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 15:36:28,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:36:28,325 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-12-13 15:36:28,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:36:28,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043380530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:28,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:36:28,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 15:36:28,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851633345] [2022-12-13 15:36:28,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:28,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:36:28,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:28,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:36:28,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:36:28,328 INFO L87 Difference]: Start difference. First operand 393 states and 599 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:36:28,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:28,367 INFO L93 Difference]: Finished difference Result 592 states and 882 transitions. [2022-12-13 15:36:28,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:36:28,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2022-12-13 15:36:28,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:28,370 INFO L225 Difference]: With dead ends: 592 [2022-12-13 15:36:28,370 INFO L226 Difference]: Without dead ends: 396 [2022-12-13 15:36:28,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:36:28,372 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 1 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1192 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 [2022-12-13 15:36:28,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1192 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:36:28,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-12-13 15:36:28,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2022-12-13 15:36:28,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 308 states have (on average 1.551948051948052) internal successors, (478), 312 states have internal predecessors, (478), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2022-12-13 15:36:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 601 transitions. [2022-12-13 15:36:28,390 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 601 transitions. Word has length 129 [2022-12-13 15:36:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:28,391 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 601 transitions. [2022-12-13 15:36:28,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:36:28,391 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 601 transitions. [2022-12-13 15:36:28,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-13 15:36:28,394 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:28,394 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:28,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 15:36:28,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:28,597 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:28,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:28,598 INFO L85 PathProgramCache]: Analyzing trace with hash -229734979, now seen corresponding path program 1 times [2022-12-13 15:36:28,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:28,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415244341] [2022-12-13 15:36:28,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:28,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 15:36:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 15:36:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:36:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 15:36:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 15:36:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 15:36:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 15:36:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 15:36:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:36:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 15:36:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 15:36:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 15:36:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 15:36:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 15:36:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:28,978 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 15:36:28,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:28,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415244341] [2022-12-13 15:36:28,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415244341] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:36:28,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261310518] [2022-12-13 15:36:28,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:28,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:28,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:36:28,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:36:28,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 15:36:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 1290 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:36:29,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:36:29,223 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-13 15:36:29,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:36:29,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261310518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:29,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:36:29,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 15:36:29,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804779147] [2022-12-13 15:36:29,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:29,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:36:29,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:29,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:36:29,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:36:29,226 INFO L87 Difference]: Start difference. First operand 395 states and 601 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 15:36:29,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:29,276 INFO L93 Difference]: Finished difference Result 843 states and 1302 transitions. [2022-12-13 15:36:29,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:36:29,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2022-12-13 15:36:29,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:29,280 INFO L225 Difference]: With dead ends: 843 [2022-12-13 15:36:29,281 INFO L226 Difference]: Without dead ends: 475 [2022-12-13 15:36:29,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:36:29,285 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 142 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1181 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 [2022-12-13 15:36:29,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1181 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:36:29,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-12-13 15:36:29,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 467. [2022-12-13 15:36:29,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 366 states have (on average 1.5710382513661203) internal successors, (575), 370 states have internal predecessors, (575), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2022-12-13 15:36:29,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 726 transitions. [2022-12-13 15:36:29,318 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 726 transitions. Word has length 157 [2022-12-13 15:36:29,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:29,318 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 726 transitions. [2022-12-13 15:36:29,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 15:36:29,318 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 726 transitions. [2022-12-13 15:36:29,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-12-13 15:36:29,323 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:29,323 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:29,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 15:36:29,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:29,525 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:29,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:29,525 INFO L85 PathProgramCache]: Analyzing trace with hash 94477727, now seen corresponding path program 1 times [2022-12-13 15:36:29,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:29,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945327343] [2022-12-13 15:36:29,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:29,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 15:36:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 15:36:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 15:36:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 15:36:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 15:36:29,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 15:36:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 15:36:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 15:36:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:36:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 15:36:29,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 15:36:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,757 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 15:36:29,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:29,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945327343] [2022-12-13 15:36:29,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945327343] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:36:29,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147239665] [2022-12-13 15:36:29,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:29,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:29,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:36:29,758 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:36:29,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 15:36:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:29,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:36:29,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:36:30,030 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 15:36:30,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:36:30,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147239665] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:30,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:36:30,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-12-13 15:36:30,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048386403] [2022-12-13 15:36:30,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:30,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:36:30,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:30,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:36:30,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:36:30,032 INFO L87 Difference]: Start difference. First operand 467 states and 726 transitions. Second operand has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 15:36:30,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:30,083 INFO L93 Difference]: Finished difference Result 925 states and 1442 transitions. [2022-12-13 15:36:30,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:36:30,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 139 [2022-12-13 15:36:30,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:30,086 INFO L225 Difference]: With dead ends: 925 [2022-12-13 15:36:30,086 INFO L226 Difference]: Without dead ends: 469 [2022-12-13 15:36:30,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:36:30,088 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 160 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 2177 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 [2022-12-13 15:36:30,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 2177 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:36:30,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-12-13 15:36:30,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-12-13 15:36:30,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 367 states have (on average 1.569482288828338) internal successors, (576), 372 states have internal predecessors, (576), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2022-12-13 15:36:30,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 729 transitions. [2022-12-13 15:36:30,105 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 729 transitions. Word has length 139 [2022-12-13 15:36:30,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:30,105 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 729 transitions. [2022-12-13 15:36:30,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.25) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 15:36:30,106 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 729 transitions. [2022-12-13 15:36:30,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-12-13 15:36:30,107 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:30,108 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:30,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 15:36:30,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:30,308 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:30,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:30,309 INFO L85 PathProgramCache]: Analyzing trace with hash 898099261, now seen corresponding path program 1 times [2022-12-13 15:36:30,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:30,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382273157] [2022-12-13 15:36:30,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:30,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 15:36:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 15:36:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 15:36:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 15:36:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:36:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:36:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 15:36:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 15:36:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:36:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 15:36:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,493 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 15:36:30,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:30,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382273157] [2022-12-13 15:36:30,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382273157] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:36:30,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314543704] [2022-12-13 15:36:30,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:30,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:30,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:36:30,495 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:36:30,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 15:36:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:30,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:36:30,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:36:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 15:36:30,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:36:30,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314543704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:30,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:36:30,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 15:36:30,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691396394] [2022-12-13 15:36:30,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:30,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:36:30,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:30,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:36:30,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-13 15:36:30,760 INFO L87 Difference]: Start difference. First operand 469 states and 729 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 15:36:30,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:30,833 INFO L93 Difference]: Finished difference Result 927 states and 1447 transitions. [2022-12-13 15:36:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:36:30,833 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 140 [2022-12-13 15:36:30,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:30,836 INFO L225 Difference]: With dead ends: 927 [2022-12-13 15:36:30,837 INFO L226 Difference]: Without dead ends: 471 [2022-12-13 15:36:30,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-12-13 15:36:30,839 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 159 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2166 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 [2022-12-13 15:36:30,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2166 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:36:30,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2022-12-13 15:36:30,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2022-12-13 15:36:30,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 368 states have (on average 1.5679347826086956) internal successors, (577), 374 states have internal predecessors, (577), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-12-13 15:36:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 735 transitions. [2022-12-13 15:36:30,865 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 735 transitions. Word has length 140 [2022-12-13 15:36:30,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:30,865 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 735 transitions. [2022-12-13 15:36:30,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 15:36:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 735 transitions. [2022-12-13 15:36:30,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-12-13 15:36:30,869 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:30,869 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:30,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 15:36:31,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:31,071 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:31,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:31,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2127844731, now seen corresponding path program 1 times [2022-12-13 15:36:31,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:31,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876811805] [2022-12-13 15:36:31,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:31,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 15:36:31,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 15:36:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 15:36:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 15:36:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 15:36:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 15:36:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:36:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 15:36:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 15:36:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:31,329 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 15:36:31,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:31,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876811805] [2022-12-13 15:36:31,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876811805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:31,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:31,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 15:36:31,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173661632] [2022-12-13 15:36:31,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:31,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:36:31,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:31,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:36:31,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:36:31,332 INFO L87 Difference]: Start difference. First operand 471 states and 735 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 15:36:33,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:33,176 INFO L93 Difference]: Finished difference Result 1111 states and 1758 transitions. [2022-12-13 15:36:33,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:36:33,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2022-12-13 15:36:33,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:33,182 INFO L225 Difference]: With dead ends: 1111 [2022-12-13 15:36:33,182 INFO L226 Difference]: Without dead ends: 663 [2022-12-13 15:36:33,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 15:36:33,184 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1507 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2915 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 3517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 2915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:33,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1247 Invalid, 3517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 2915 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 15:36:33,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2022-12-13 15:36:33,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 471. [2022-12-13 15:36:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 368 states have (on average 1.5679347826086956) internal successors, (577), 374 states have internal predecessors, (577), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2022-12-13 15:36:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 734 transitions. [2022-12-13 15:36:33,235 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 734 transitions. Word has length 141 [2022-12-13 15:36:33,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:33,236 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 734 transitions. [2022-12-13 15:36:33,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 5 states have internal predecessors, (91), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 15:36:33,236 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 734 transitions. [2022-12-13 15:36:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-12-13 15:36:33,239 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:33,240 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:33,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:36:33,240 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:33,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:33,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1541676215, now seen corresponding path program 2 times [2022-12-13 15:36:33,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:33,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432699405] [2022-12-13 15:36:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:33,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 15:36:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 15:36:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 15:36:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 15:36:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 15:36:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 15:36:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 15:36:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 15:36:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 15:36:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 15:36:33,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:33,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432699405] [2022-12-13 15:36:33,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432699405] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:33,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:33,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 15:36:33,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020481407] [2022-12-13 15:36:33,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:33,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:36:33,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:33,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:36:33,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:36:33,456 INFO L87 Difference]: Start difference. First operand 471 states and 734 transitions. Second operand has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 15:36:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:35,315 INFO L93 Difference]: Finished difference Result 1113 states and 1761 transitions. [2022-12-13 15:36:35,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:36:35,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2022-12-13 15:36:35,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:35,318 INFO L225 Difference]: With dead ends: 1113 [2022-12-13 15:36:35,318 INFO L226 Difference]: Without dead ends: 665 [2022-12-13 15:36:35,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-12-13 15:36:35,319 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1539 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 2861 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 3464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 2861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:35,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 1248 Invalid, 3464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 2861 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-13 15:36:35,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-12-13 15:36:35,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 473. [2022-12-13 15:36:35,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 369 states have (on average 1.5663956639566397) internal successors, (578), 376 states have internal predecessors, (578), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2022-12-13 15:36:35,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 737 transitions. [2022-12-13 15:36:35,346 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 737 transitions. Word has length 142 [2022-12-13 15:36:35,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:35,347 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 737 transitions. [2022-12-13 15:36:35,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.5) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 15:36:35,347 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 737 transitions. [2022-12-13 15:36:35,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-12-13 15:36:35,349 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:35,349 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:35,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:36:35,349 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:35,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:35,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1422901144, now seen corresponding path program 1 times [2022-12-13 15:36:35,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:35,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457785057] [2022-12-13 15:36:35,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:35,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:36:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 15:36:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 15:36:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:36:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 15:36:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 15:36:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 15:36:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 15:36:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 15:36:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 15:36:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 15:36:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 15:36:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 15:36:35,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:35,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457785057] [2022-12-13 15:36:35,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457785057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:35,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:35,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 15:36:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306727615] [2022-12-13 15:36:35,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:35,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 15:36:35,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 15:36:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:36:35,543 INFO L87 Difference]: Start difference. First operand 473 states and 737 transitions. Second operand has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 15:36:37,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:37,903 INFO L93 Difference]: Finished difference Result 1111 states and 1756 transitions. [2022-12-13 15:36:37,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:36:37,904 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 162 [2022-12-13 15:36:37,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:37,906 INFO L225 Difference]: With dead ends: 1111 [2022-12-13 15:36:37,906 INFO L226 Difference]: Without dead ends: 665 [2022-12-13 15:36:37,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 15:36:37,908 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1694 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4679 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 5343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 4679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:37,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 1628 Invalid, 5343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 4679 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 15:36:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2022-12-13 15:36:37,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 473. [2022-12-13 15:36:37,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 369 states have (on average 1.5663956639566397) internal successors, (578), 376 states have internal predecessors, (578), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2022-12-13 15:36:37,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 736 transitions. [2022-12-13 15:36:37,935 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 736 transitions. Word has length 162 [2022-12-13 15:36:37,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:37,935 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 736 transitions. [2022-12-13 15:36:37,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 15:36:37,935 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 736 transitions. [2022-12-13 15:36:37,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 15:36:37,937 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:37,937 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:37,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:36:37,937 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:37,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:37,937 INFO L85 PathProgramCache]: Analyzing trace with hash -457821138, now seen corresponding path program 2 times [2022-12-13 15:36:37,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:37,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861570491] [2022-12-13 15:36:37,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:37,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:36:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 15:36:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 15:36:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:36:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 15:36:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:36:38,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 15:36:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 15:36:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 15:36:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 15:36:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 15:36:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-12-13 15:36:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 15:36:38,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:38,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861570491] [2022-12-13 15:36:38,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861570491] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:38,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:38,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 15:36:38,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617692465] [2022-12-13 15:36:38,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:38,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 15:36:38,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:38,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 15:36:38,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 15:36:38,121 INFO L87 Difference]: Start difference. First operand 473 states and 736 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 15:36:40,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:40,211 INFO L93 Difference]: Finished difference Result 1113 states and 1762 transitions. [2022-12-13 15:36:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:36:40,212 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 163 [2022-12-13 15:36:40,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:40,214 INFO L225 Difference]: With dead ends: 1113 [2022-12-13 15:36:40,214 INFO L226 Difference]: Without dead ends: 667 [2022-12-13 15:36:40,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2022-12-13 15:36:40,215 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1655 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 4866 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 5516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 4866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:40,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 1629 Invalid, 5516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 4866 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 15:36:40,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2022-12-13 15:36:40,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 475. [2022-12-13 15:36:40,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 370 states have (on average 1.5648648648648649) internal successors, (579), 378 states have internal predecessors, (579), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2022-12-13 15:36:40,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 742 transitions. [2022-12-13 15:36:40,245 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 742 transitions. Word has length 163 [2022-12-13 15:36:40,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:40,245 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 742 transitions. [2022-12-13 15:36:40,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 8 states have internal predecessors, (104), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-12-13 15:36:40,246 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 742 transitions. [2022-12-13 15:36:40,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-12-13 15:36:40,247 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:40,247 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:40,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:36:40,247 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:40,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:40,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2064063877, now seen corresponding path program 1 times [2022-12-13 15:36:40,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:40,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520744729] [2022-12-13 15:36:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:40,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:36:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 15:36:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 15:36:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 15:36:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 15:36:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:36:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 15:36:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 15:36:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 15:36:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,429 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-12-13 15:36:40,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:40,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520744729] [2022-12-13 15:36:40,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520744729] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:36:40,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473619863] [2022-12-13 15:36:40,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:40,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:40,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:36:40,430 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:36:40,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 15:36:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:40,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 15:36:40,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:36:40,639 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 15:36:40,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:36:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 15:36:40,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473619863] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:36:40,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:36:40,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2022-12-13 15:36:40,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910504901] [2022-12-13 15:36:40,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:36:40,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 15:36:40,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:40,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 15:36:40,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-12-13 15:36:40,710 INFO L87 Difference]: Start difference. First operand 475 states and 742 transitions. Second operand has 15 states, 14 states have (on average 10.785714285714286) internal successors, (151), 11 states have internal predecessors, (151), 4 states have call successors, (37), 6 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-13 15:36:43,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:43,431 INFO L93 Difference]: Finished difference Result 2022 states and 3400 transitions. [2022-12-13 15:36:43,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 15:36:43,432 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.785714285714286) internal successors, (151), 11 states have internal predecessors, (151), 4 states have call successors, (37), 6 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 145 [2022-12-13 15:36:43,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:43,436 INFO L225 Difference]: With dead ends: 2022 [2022-12-13 15:36:43,437 INFO L226 Difference]: Without dead ends: 1578 [2022-12-13 15:36:43,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2022-12-13 15:36:43,438 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 4604 mSDsluCounter, 3452 mSDsCounter, 0 mSdLazyCounter, 5495 mSolverCounterSat, 1735 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4606 SdHoareTripleChecker+Valid, 3883 SdHoareTripleChecker+Invalid, 7230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1735 IncrementalHoareTripleChecker+Valid, 5495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:43,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4606 Valid, 3883 Invalid, 7230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1735 Valid, 5495 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 15:36:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2022-12-13 15:36:43,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 918. [2022-12-13 15:36:43,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 734 states have (on average 1.6144414168937329) internal successors, (1185), 742 states have internal predecessors, (1185), 155 states have call successors, (155), 24 states have call predecessors, (155), 28 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2022-12-13 15:36:43,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1516 transitions. [2022-12-13 15:36:43,508 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1516 transitions. Word has length 145 [2022-12-13 15:36:43,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:43,509 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1516 transitions. [2022-12-13 15:36:43,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.785714285714286) internal successors, (151), 11 states have internal predecessors, (151), 4 states have call successors, (37), 6 states have call predecessors, (37), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2022-12-13 15:36:43,509 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1516 transitions. [2022-12-13 15:36:43,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-12-13 15:36:43,512 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:43,512 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:43,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 15:36:43,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:36:43,714 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:43,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:43,714 INFO L85 PathProgramCache]: Analyzing trace with hash -649907940, now seen corresponding path program 1 times [2022-12-13 15:36:43,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:43,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965029217] [2022-12-13 15:36:43,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:43,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:36:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 15:36:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 15:36:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 15:36:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 15:36:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 15:36:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 15:36:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 15:36:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 15:36:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 15:36:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 15:36:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 15:36:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:43,831 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 15:36:43,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:43,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965029217] [2022-12-13 15:36:43,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965029217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:43,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:43,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:36:43,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431396741] [2022-12-13 15:36:43,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:43,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:36:43,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:43,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:36:43,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:36:43,833 INFO L87 Difference]: Start difference. First operand 918 states and 1516 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 15:36:45,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:45,092 INFO L93 Difference]: Finished difference Result 2373 states and 4008 transitions. [2022-12-13 15:36:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:36:45,092 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2022-12-13 15:36:45,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:45,097 INFO L225 Difference]: With dead ends: 2373 [2022-12-13 15:36:45,097 INFO L226 Difference]: Without dead ends: 1533 [2022-12-13 15:36:45,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:36:45,099 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1494 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:45,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1087 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 15:36:45,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2022-12-13 15:36:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1333. [2022-12-13 15:36:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1070 states have (on average 1.6308411214953271) internal successors, (1745), 1078 states have internal predecessors, (1745), 234 states have call successors, (234), 24 states have call predecessors, (234), 28 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2022-12-13 15:36:45,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2244 transitions. [2022-12-13 15:36:45,197 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2244 transitions. Word has length 167 [2022-12-13 15:36:45,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:45,197 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2244 transitions. [2022-12-13 15:36:45,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 15:36:45,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2244 transitions. [2022-12-13 15:36:45,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-12-13 15:36:45,201 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:45,201 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:45,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:36:45,202 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:45,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:45,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1534638511, now seen corresponding path program 1 times [2022-12-13 15:36:45,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:45,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766289585] [2022-12-13 15:36:45,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:45,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:36:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 15:36:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:36:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:36:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 15:36:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 15:36:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 15:36:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 15:36:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 15:36:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 15:36:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 15:36:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 15:36:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:45,297 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 15:36:45,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:45,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766289585] [2022-12-13 15:36:45,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766289585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:45,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:45,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:36:45,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450133456] [2022-12-13 15:36:45,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:45,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:36:45,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:45,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:36:45,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:36:45,298 INFO L87 Difference]: Start difference. First operand 1333 states and 2244 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 15:36:47,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:47,103 INFO L93 Difference]: Finished difference Result 3412 states and 5821 transitions. [2022-12-13 15:36:47,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:36:47,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2022-12-13 15:36:47,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:47,110 INFO L225 Difference]: With dead ends: 3412 [2022-12-13 15:36:47,110 INFO L226 Difference]: Without dead ends: 2210 [2022-12-13 15:36:47,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:36:47,112 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1474 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 692 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 2423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 692 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:47,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1046 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [692 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 15:36:47,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2022-12-13 15:36:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 2010. [2022-12-13 15:36:47,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1628 states have (on average 1.6382063882063882) internal successors, (2667), 1636 states have internal predecessors, (2667), 353 states have call successors, (353), 24 states have call predecessors, (353), 28 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2022-12-13 15:36:47,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3404 transitions. [2022-12-13 15:36:47,262 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3404 transitions. Word has length 168 [2022-12-13 15:36:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:47,262 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 3404 transitions. [2022-12-13 15:36:47,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 15:36:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3404 transitions. [2022-12-13 15:36:47,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-12-13 15:36:47,269 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:47,269 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:47,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 15:36:47,269 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:47,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:47,269 INFO L85 PathProgramCache]: Analyzing trace with hash 2065922126, now seen corresponding path program 1 times [2022-12-13 15:36:47,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:47,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515179586] [2022-12-13 15:36:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:47,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:36:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 15:36:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 15:36:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 15:36:47,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 15:36:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 15:36:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 15:36:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 15:36:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 15:36:47,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:47,356 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 15:36:47,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:47,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515179586] [2022-12-13 15:36:47,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515179586] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:47,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:47,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:36:47,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641913053] [2022-12-13 15:36:47,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:47,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:36:47,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:47,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:36:47,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:36:47,358 INFO L87 Difference]: Start difference. First operand 2010 states and 3404 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:36:48,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:48,992 INFO L93 Difference]: Finished difference Result 4997 states and 8600 transitions. [2022-12-13 15:36:48,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:36:48,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 150 [2022-12-13 15:36:48,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:49,001 INFO L225 Difference]: With dead ends: 4997 [2022-12-13 15:36:49,001 INFO L226 Difference]: Without dead ends: 3253 [2022-12-13 15:36:49,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:36:49,004 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1507 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 2400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:49,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1041 Invalid, 2400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 15:36:49,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2022-12-13 15:36:49,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 3053. [2022-12-13 15:36:49,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2509 states have (on average 1.6440813072937426) internal successors, (4125), 2517 states have internal predecessors, (4125), 515 states have call successors, (515), 24 states have call predecessors, (515), 28 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2022-12-13 15:36:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 5202 transitions. [2022-12-13 15:36:49,244 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 5202 transitions. Word has length 150 [2022-12-13 15:36:49,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:49,244 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 5202 transitions. [2022-12-13 15:36:49,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:36:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 5202 transitions. [2022-12-13 15:36:49,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-12-13 15:36:49,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:49,252 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:49,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 15:36:49,252 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:49,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:49,252 INFO L85 PathProgramCache]: Analyzing trace with hash 325181416, now seen corresponding path program 1 times [2022-12-13 15:36:49,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:49,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857561286] [2022-12-13 15:36:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:49,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:49,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:36:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 15:36:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 15:36:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 15:36:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 15:36:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 15:36:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 15:36:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 15:36:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 15:36:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 15:36:49,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:49,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857561286] [2022-12-13 15:36:49,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857561286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:49,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:49,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:36:49,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966744108] [2022-12-13 15:36:49,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:49,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:36:49,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:49,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:36:49,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:36:49,340 INFO L87 Difference]: Start difference. First operand 3053 states and 5202 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:36:50,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:50,971 INFO L93 Difference]: Finished difference Result 7511 states and 13015 transitions. [2022-12-13 15:36:50,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:36:50,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 151 [2022-12-13 15:36:50,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:50,986 INFO L225 Difference]: With dead ends: 7511 [2022-12-13 15:36:50,986 INFO L226 Difference]: Without dead ends: 4943 [2022-12-13 15:36:50,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:36:50,991 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1495 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:50,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1044 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 15:36:50,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4943 states. [2022-12-13 15:36:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4943 to 4743. [2022-12-13 15:36:51,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 3954 states have (on average 1.6482043500252908) internal successors, (6517), 3962 states have internal predecessors, (6517), 760 states have call successors, (760), 24 states have call predecessors, (760), 28 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2022-12-13 15:36:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 8110 transitions. [2022-12-13 15:36:51,348 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 8110 transitions. Word has length 151 [2022-12-13 15:36:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:51,348 INFO L495 AbstractCegarLoop]: Abstraction has 4743 states and 8110 transitions. [2022-12-13 15:36:51,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:36:51,348 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 8110 transitions. [2022-12-13 15:36:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-12-13 15:36:51,357 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:51,357 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:51,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 15:36:51,358 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:51,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:51,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1176646670, now seen corresponding path program 1 times [2022-12-13 15:36:51,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:51,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003283242] [2022-12-13 15:36:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:51,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:51,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:36:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 15:36:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:36:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 15:36:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 15:36:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 15:36:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 15:36:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 15:36:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 15:36:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:51,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:51,442 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 15:36:51,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:51,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003283242] [2022-12-13 15:36:51,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003283242] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:51,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:51,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:36:51,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701111975] [2022-12-13 15:36:51,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:51,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:36:51,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:51,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:36:51,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:36:51,444 INFO L87 Difference]: Start difference. First operand 4743 states and 8110 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:36:53,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:53,166 INFO L93 Difference]: Finished difference Result 11712 states and 20392 transitions. [2022-12-13 15:36:53,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:36:53,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 152 [2022-12-13 15:36:53,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:53,188 INFO L225 Difference]: With dead ends: 11712 [2022-12-13 15:36:53,189 INFO L226 Difference]: Without dead ends: 7786 [2022-12-13 15:36:53,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:36:53,195 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1489 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 1739 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 2432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 1739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:53,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1064 Invalid, 2432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 1739 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 15:36:53,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7786 states. [2022-12-13 15:36:53,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7786 to 7586. [2022-12-13 15:36:53,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7586 states, 6304 states have (on average 1.6459390862944163) internal successors, (10376), 6312 states have internal predecessors, (10376), 1253 states have call successors, (1253), 24 states have call predecessors, (1253), 28 states have return successors, (1370), 1251 states have call predecessors, (1370), 1252 states have call successors, (1370) [2022-12-13 15:36:53,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7586 states to 7586 states and 12999 transitions. [2022-12-13 15:36:53,721 INFO L78 Accepts]: Start accepts. Automaton has 7586 states and 12999 transitions. Word has length 152 [2022-12-13 15:36:53,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:53,721 INFO L495 AbstractCegarLoop]: Abstraction has 7586 states and 12999 transitions. [2022-12-13 15:36:53,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:36:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 7586 states and 12999 transitions. [2022-12-13 15:36:53,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-12-13 15:36:53,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:53,737 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:53,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 15:36:53,737 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:53,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:53,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1705876412, now seen corresponding path program 1 times [2022-12-13 15:36:53,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:53,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541116949] [2022-12-13 15:36:53,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:53,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:53,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:36:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 15:36:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:36:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 15:36:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 15:36:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 15:36:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 15:36:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-12-13 15:36:53,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 15:36:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:53,832 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 15:36:53,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:53,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541116949] [2022-12-13 15:36:53,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541116949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:53,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:53,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:36:53,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452645176] [2022-12-13 15:36:53,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:53,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:36:53,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:53,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:36:53,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:36:53,834 INFO L87 Difference]: Start difference. First operand 7586 states and 12999 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:36:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:36:56,510 INFO L93 Difference]: Finished difference Result 19327 states and 33668 transitions. [2022-12-13 15:36:56,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:36:56,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 153 [2022-12-13 15:36:56,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:36:56,539 INFO L225 Difference]: With dead ends: 19327 [2022-12-13 15:36:56,539 INFO L226 Difference]: Without dead ends: 12960 [2022-12-13 15:36:56,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:36:56,550 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1474 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1763 mSolverCounterSat, 683 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 683 IncrementalHoareTripleChecker+Valid, 1763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:36:56,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1048 Invalid, 2446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [683 Valid, 1763 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 15:36:56,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12960 states. [2022-12-13 15:36:57,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12960 to 12760. [2022-12-13 15:36:57,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12760 states, 10656 states have (on average 1.645927177177177) internal successors, (17539), 10664 states have internal predecessors, (17539), 2075 states have call successors, (2075), 24 states have call predecessors, (2075), 28 states have return successors, (2270), 2073 states have call predecessors, (2270), 2074 states have call successors, (2270) [2022-12-13 15:36:57,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12760 states to 12760 states and 21884 transitions. [2022-12-13 15:36:57,447 INFO L78 Accepts]: Start accepts. Automaton has 12760 states and 21884 transitions. Word has length 153 [2022-12-13 15:36:57,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:36:57,448 INFO L495 AbstractCegarLoop]: Abstraction has 12760 states and 21884 transitions. [2022-12-13 15:36:57,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:36:57,448 INFO L276 IsEmpty]: Start isEmpty. Operand 12760 states and 21884 transitions. [2022-12-13 15:36:57,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-12-13 15:36:57,469 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:36:57,469 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:36:57,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 15:36:57,470 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:36:57,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:36:57,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1100380708, now seen corresponding path program 1 times [2022-12-13 15:36:57,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:36:57,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121825661] [2022-12-13 15:36:57,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:36:57,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:36:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:36:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:36:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:36:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:36:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:36:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:36:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 15:36:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 15:36:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 15:36:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 15:36:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 15:36:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 15:36:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-12-13 15:36:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 15:36:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:36:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:36:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 15:36:57,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:36:57,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121825661] [2022-12-13 15:36:57,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121825661] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:36:57,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:36:57,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:36:57,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218205721] [2022-12-13 15:36:57,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:36:57,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:36:57,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:36:57,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:36:57,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:36:57,551 INFO L87 Difference]: Start difference. First operand 12760 states and 21884 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:37:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:37:00,802 INFO L93 Difference]: Finished difference Result 30810 states and 53368 transitions. [2022-12-13 15:37:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:37:00,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 154 [2022-12-13 15:37:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:37:00,847 INFO L225 Difference]: With dead ends: 30810 [2022-12-13 15:37:00,847 INFO L226 Difference]: Without dead ends: 20273 [2022-12-13 15:37:00,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:37:00,864 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1478 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 2397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:37:00,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1018 Invalid, 2397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [655 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 15:37:00,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20273 states. [2022-12-13 15:37:02,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20273 to 20073. [2022-12-13 15:37:02,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20073 states, 16766 states have (on average 1.6214362400095432) internal successors, (27185), 16774 states have internal predecessors, (27185), 3278 states have call successors, (3278), 24 states have call predecessors, (3278), 28 states have return successors, (3617), 3276 states have call predecessors, (3617), 3277 states have call successors, (3617) [2022-12-13 15:37:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20073 states to 20073 states and 34080 transitions. [2022-12-13 15:37:02,339 INFO L78 Accepts]: Start accepts. Automaton has 20073 states and 34080 transitions. Word has length 154 [2022-12-13 15:37:02,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:37:02,339 INFO L495 AbstractCegarLoop]: Abstraction has 20073 states and 34080 transitions. [2022-12-13 15:37:02,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:37:02,339 INFO L276 IsEmpty]: Start isEmpty. Operand 20073 states and 34080 transitions. [2022-12-13 15:37:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-12-13 15:37:02,363 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:37:02,363 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:37:02,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 15:37:02,363 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:37:02,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:02,364 INFO L85 PathProgramCache]: Analyzing trace with hash 575908099, now seen corresponding path program 1 times [2022-12-13 15:37:02,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:02,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032464669] [2022-12-13 15:37:02,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:02,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:37:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:37:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:37:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:37:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:37:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:37:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 15:37:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 15:37:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 15:37:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 15:37:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 15:37:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 15:37:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 15:37:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:37:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:37:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:02,435 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 15:37:02,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:02,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032464669] [2022-12-13 15:37:02,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032464669] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:02,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:02,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:37:02,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841449746] [2022-12-13 15:37:02,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:02,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:37:02,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:02,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:37:02,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:37:02,437 INFO L87 Difference]: Start difference. First operand 20073 states and 34080 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:37:06,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:37:06,363 INFO L93 Difference]: Finished difference Result 53252 states and 91902 transitions. [2022-12-13 15:37:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:37:06,363 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 155 [2022-12-13 15:37:06,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:37:06,444 INFO L225 Difference]: With dead ends: 53252 [2022-12-13 15:37:06,444 INFO L226 Difference]: Without dead ends: 36079 [2022-12-13 15:37:06,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:37:06,473 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1475 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 656 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:37:06,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1045 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 15:37:06,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36079 states. [2022-12-13 15:37:09,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36079 to 35879. [2022-12-13 15:37:09,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35879 states, 30122 states have (on average 1.6183188367306287) internal successors, (48747), 30130 states have internal predecessors, (48747), 5728 states have call successors, (5728), 24 states have call predecessors, (5728), 28 states have return successors, (6341), 5726 states have call predecessors, (6341), 5727 states have call successors, (6341) [2022-12-13 15:37:09,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35879 states to 35879 states and 60816 transitions. [2022-12-13 15:37:09,214 INFO L78 Accepts]: Start accepts. Automaton has 35879 states and 60816 transitions. Word has length 155 [2022-12-13 15:37:09,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:37:09,214 INFO L495 AbstractCegarLoop]: Abstraction has 35879 states and 60816 transitions. [2022-12-13 15:37:09,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:37:09,215 INFO L276 IsEmpty]: Start isEmpty. Operand 35879 states and 60816 transitions. [2022-12-13 15:37:09,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-13 15:37:09,251 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:37:09,251 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:37:09,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 15:37:09,251 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:37:09,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:09,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1529364334, now seen corresponding path program 1 times [2022-12-13 15:37:09,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:09,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902964388] [2022-12-13 15:37:09,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:09,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:37:09,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:37:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:37:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:37:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:37:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:37:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 15:37:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 15:37:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 15:37:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 15:37:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 15:37:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 15:37:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-12-13 15:37:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 15:37:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 15:37:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 15:37:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 15:37:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:37:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 15:37:09,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:09,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902964388] [2022-12-13 15:37:09,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902964388] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:09,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:09,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:37:09,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915807346] [2022-12-13 15:37:09,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:09,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:37:09,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:09,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:37:09,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:37:09,332 INFO L87 Difference]: Start difference. First operand 35879 states and 60816 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 15:37:15,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:37:15,111 INFO L93 Difference]: Finished difference Result 98099 states and 168461 transitions. [2022-12-13 15:37:15,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:37:15,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2022-12-13 15:37:15,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:37:15,272 INFO L225 Difference]: With dead ends: 98099 [2022-12-13 15:37:15,272 INFO L226 Difference]: Without dead ends: 66076 [2022-12-13 15:37:15,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:37:15,323 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 1495 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1715 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 1715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 15:37:15,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1044 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 1715 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 15:37:15,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66076 states. [2022-12-13 15:37:20,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66076 to 65876. [2022-12-13 15:37:20,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65876 states, 55606 states have (on average 1.6142142934215733) internal successors, (89760), 55614 states have internal predecessors, (89760), 10241 states have call successors, (10241), 24 states have call predecessors, (10241), 28 states have return successors, (11386), 10239 states have call predecessors, (11386), 10240 states have call successors, (11386) [2022-12-13 15:37:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65876 states to 65876 states and 111387 transitions. [2022-12-13 15:37:20,269 INFO L78 Accepts]: Start accepts. Automaton has 65876 states and 111387 transitions. Word has length 175 [2022-12-13 15:37:20,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:37:20,269 INFO L495 AbstractCegarLoop]: Abstraction has 65876 states and 111387 transitions. [2022-12-13 15:37:20,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 15:37:20,269 INFO L276 IsEmpty]: Start isEmpty. Operand 65876 states and 111387 transitions. [2022-12-13 15:37:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-12-13 15:37:20,320 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:37:20,320 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:37:20,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 15:37:20,320 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:37:20,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:20,320 INFO L85 PathProgramCache]: Analyzing trace with hash -159026301, now seen corresponding path program 1 times [2022-12-13 15:37:20,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:20,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928345967] [2022-12-13 15:37:20,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:20,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:37:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:37:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:37:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:37:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:37:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:37:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 15:37:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 15:37:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 15:37:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 15:37:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 15:37:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 15:37:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 15:37:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 15:37:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:37:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 15:37:20,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:20,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928345967] [2022-12-13 15:37:20,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928345967] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:20,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:20,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:37:20,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907209928] [2022-12-13 15:37:20,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:20,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:37:20,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:20,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:37:20,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:37:20,472 INFO L87 Difference]: Start difference. First operand 65876 states and 111387 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:37:30,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:37:30,142 INFO L93 Difference]: Finished difference Result 123760 states and 212894 transitions. [2022-12-13 15:37:30,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:37:30,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 157 [2022-12-13 15:37:30,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:37:30,477 INFO L225 Difference]: With dead ends: 123760 [2022-12-13 15:37:30,477 INFO L226 Difference]: Without dead ends: 123564 [2022-12-13 15:37:30,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:37:30,509 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1467 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 662 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 662 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:37:30,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1043 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [662 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 15:37:30,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123564 states. [2022-12-13 15:37:39,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123564 to 123364. [2022-12-13 15:37:39,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123364 states, 104726 states have (on average 1.6090751102877987) internal successors, (168512), 104734 states have internal predecessors, (168512), 18609 states have call successors, (18609), 24 states have call predecessors, (18609), 28 states have return successors, (20800), 18607 states have call predecessors, (20800), 18608 states have call successors, (20800) [2022-12-13 15:37:39,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123364 states to 123364 states and 207921 transitions. [2022-12-13 15:37:39,719 INFO L78 Accepts]: Start accepts. Automaton has 123364 states and 207921 transitions. Word has length 157 [2022-12-13 15:37:39,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:37:39,719 INFO L495 AbstractCegarLoop]: Abstraction has 123364 states and 207921 transitions. [2022-12-13 15:37:39,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 15:37:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 123364 states and 207921 transitions. [2022-12-13 15:37:39,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-12-13 15:37:39,785 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:37:39,785 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:37:39,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 15:37:39,785 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:37:39,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:37:39,786 INFO L85 PathProgramCache]: Analyzing trace with hash -263832819, now seen corresponding path program 1 times [2022-12-13 15:37:39,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:37:39,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045504711] [2022-12-13 15:37:39,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:37:39,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:37:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:37:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:37:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:37:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:37:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:37:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:37:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:37:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:37:39,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:37:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 15:37:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 15:37:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 15:37:39,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 15:37:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 15:37:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 15:37:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-12-13 15:37:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-12-13 15:37:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:37:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:37:39,926 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 15:37:39,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:37:39,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045504711] [2022-12-13 15:37:39,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045504711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:37:39,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:37:39,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 15:37:39,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929195714] [2022-12-13 15:37:39,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:37:39,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 15:37:39,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:37:39,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 15:37:39,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 15:37:39,928 INFO L87 Difference]: Start difference. First operand 123364 states and 207921 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 15:37:57,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:37:57,638 INFO L93 Difference]: Finished difference Result 237464 states and 408132 transitions. [2022-12-13 15:37:57,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 15:37:57,638 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 177 [2022-12-13 15:37:57,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:37:58,364 INFO L225 Difference]: With dead ends: 237464 [2022-12-13 15:37:58,364 INFO L226 Difference]: Without dead ends: 237276 [2022-12-13 15:37:58,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2022-12-13 15:37:58,432 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 3120 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 4267 mSolverCounterSat, 1382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3137 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 5649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1382 IncrementalHoareTripleChecker+Valid, 4267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 15:37:58,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3137 Valid, 1797 Invalid, 5649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1382 Valid, 4267 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 15:37:58,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237276 states. [2022-12-13 15:38:16,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237276 to 236870. [2022-12-13 15:38:16,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236870 states, 201097 states have (on average 1.6124059533458976) internal successors, (324250), 201053 states have internal predecessors, (324250), 35720 states have call successors, (35720), 47 states have call predecessors, (35720), 52 states have return successors, (39003), 35773 states have call predecessors, (39003), 35718 states have call successors, (39003) [2022-12-13 15:38:17,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236870 states to 236870 states and 398973 transitions. [2022-12-13 15:38:17,141 INFO L78 Accepts]: Start accepts. Automaton has 236870 states and 398973 transitions. Word has length 177 [2022-12-13 15:38:17,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:38:17,142 INFO L495 AbstractCegarLoop]: Abstraction has 236870 states and 398973 transitions. [2022-12-13 15:38:17,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 15:38:17,142 INFO L276 IsEmpty]: Start isEmpty. Operand 236870 states and 398973 transitions. [2022-12-13 15:38:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-12-13 15:38:17,232 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:38:17,233 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:38:17,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 15:38:17,233 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:38:17,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:38:17,233 INFO L85 PathProgramCache]: Analyzing trace with hash -832064149, now seen corresponding path program 1 times [2022-12-13 15:38:17,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:38:17,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819107703] [2022-12-13 15:38:17,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:38:17,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:38:17,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:38:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:38:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:38:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:38:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:38:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:38:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:38:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:38:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:38:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:38:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 15:38:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 15:38:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 15:38:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 15:38:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:38:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,505 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 15:38:17,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:38:17,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819107703] [2022-12-13 15:38:17,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819107703] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:38:17,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710442300] [2022-12-13 15:38:17,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:38:17,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:38:17,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:38:17,507 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:38:17,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 15:38:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:38:17,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 1278 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 15:38:17,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:38:18,035 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 15:38:18,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:38:18,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710442300] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:38:18,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:38:18,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2022-12-13 15:38:18,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579033759] [2022-12-13 15:38:18,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:38:18,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 15:38:18,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:38:18,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 15:38:18,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2022-12-13 15:38:18,037 INFO L87 Difference]: Start difference. First operand 236870 states and 398973 transitions. Second operand has 12 states, 11 states have (on average 10.818181818181818) internal successors, (119), 9 states have internal predecessors, (119), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-12-13 15:38:50,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:38:50,865 INFO L93 Difference]: Finished difference Result 472718 states and 806621 transitions. [2022-12-13 15:38:50,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 15:38:50,865 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.818181818181818) internal successors, (119), 9 states have internal predecessors, (119), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 158 [2022-12-13 15:38:50,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:38:52,556 INFO L225 Difference]: With dead ends: 472718 [2022-12-13 15:38:52,556 INFO L226 Difference]: Without dead ends: 472338 [2022-12-13 15:38:52,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=1166, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 15:38:52,699 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 1222 mSDsluCounter, 5885 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 6734 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 15:38:52,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 6734 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 15:38:53,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472338 states. [2022-12-13 15:39:29,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472338 to 472262. [2022-12-13 15:39:30,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472262 states, 400982 states have (on average 1.612683362345442) internal successors, (646657), 400758 states have internal predecessors, (646657), 71142 states have call successors, (71142), 123 states have call predecessors, (71142), 137 states have return successors, (86021), 71396 states have call predecessors, (86021), 71136 states have call successors, (86021) [2022-12-13 15:39:32,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472262 states to 472262 states and 803820 transitions. [2022-12-13 15:39:32,025 INFO L78 Accepts]: Start accepts. Automaton has 472262 states and 803820 transitions. Word has length 158 [2022-12-13 15:39:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:39:32,025 INFO L495 AbstractCegarLoop]: Abstraction has 472262 states and 803820 transitions. [2022-12-13 15:39:32,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.818181818181818) internal successors, (119), 9 states have internal predecessors, (119), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-12-13 15:39:32,026 INFO L276 IsEmpty]: Start isEmpty. Operand 472262 states and 803820 transitions. [2022-12-13 15:39:32,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 15:39:32,324 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:39:32,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:39:32,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 15:39:32,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:32,525 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:39:32,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:39:32,527 INFO L85 PathProgramCache]: Analyzing trace with hash -692536257, now seen corresponding path program 1 times [2022-12-13 15:39:32,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:39:32,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103583458] [2022-12-13 15:39:32,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:32,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:39:32,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:39:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:39:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:39:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:39:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:39:32,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:39:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:39:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:39:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:39:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:39:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 15:39:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:39:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 15:39:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 15:39:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:39:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 15:39:32,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:39:32,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103583458] [2022-12-13 15:39:32,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103583458] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:39:32,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488628464] [2022-12-13 15:39:32,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:39:32,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:39:32,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:39:32,772 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:39:32,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 15:39:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:39:32,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 15:39:32,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:39:33,104 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 15:39:33,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:39:33,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488628464] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:39:33,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:39:33,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2022-12-13 15:39:33,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659507287] [2022-12-13 15:39:33,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:39:33,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 15:39:33,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:39:33,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 15:39:33,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2022-12-13 15:39:33,106 INFO L87 Difference]: Start difference. First operand 472262 states and 803820 transitions. Second operand has 11 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 6 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2022-12-13 15:40:05,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:40:05,804 INFO L93 Difference]: Finished difference Result 474446 states and 807237 transitions. [2022-12-13 15:40:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 15:40:05,805 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 6 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) Word has length 159 [2022-12-13 15:40:05,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:40:07,459 INFO L225 Difference]: With dead ends: 474446 [2022-12-13 15:40:07,459 INFO L226 Difference]: Without dead ends: 473104 [2022-12-13 15:40:07,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=735, Unknown=0, NotChecked=0, Total=812 [2022-12-13 15:40:07,596 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 226 mSDsluCounter, 5286 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 15:40:07,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 5892 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 15:40:07,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473104 states. [2022-12-13 15:40:45,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473104 to 473102. [2022-12-13 15:40:45,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473102 states, 401592 states have (on average 1.6124200681288472) internal successors, (647535), 401393 states have internal predecessors, (647535), 71358 states have call successors, (71358), 135 states have call predecessors, (71358), 151 states have return successors, (86308), 71605 states have call predecessors, (86308), 71340 states have call successors, (86308) [2022-12-13 15:40:47,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473102 states to 473102 states and 805201 transitions. [2022-12-13 15:40:47,370 INFO L78 Accepts]: Start accepts. Automaton has 473102 states and 805201 transitions. Word has length 159 [2022-12-13 15:40:47,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:40:47,370 INFO L495 AbstractCegarLoop]: Abstraction has 473102 states and 805201 transitions. [2022-12-13 15:40:47,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 6 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2022-12-13 15:40:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 473102 states and 805201 transitions. [2022-12-13 15:40:47,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-12-13 15:40:47,568 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:40:47,568 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:40:47,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 15:40:47,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:40:47,770 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:40:47,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:40:47,771 INFO L85 PathProgramCache]: Analyzing trace with hash -275699923, now seen corresponding path program 1 times [2022-12-13 15:40:47,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:40:47,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467482766] [2022-12-13 15:40:47,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:40:47,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:40:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:40:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:40:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:40:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:40:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:40:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:40:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:40:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:40:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:40:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:40:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 15:40:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 15:40:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 15:40:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 15:40:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 15:40:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-12-13 15:40:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-12-13 15:40:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:40:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:40:47,966 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 15:40:47,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:40:47,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467482766] [2022-12-13 15:40:47,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467482766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:40:47,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:40:47,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 15:40:47,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282885776] [2022-12-13 15:40:47,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:40:47,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 15:40:47,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:40:47,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 15:40:47,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-12-13 15:40:47,967 INFO L87 Difference]: Start difference. First operand 473102 states and 805201 transitions. Second operand has 13 states, 12 states have (on average 9.833333333333334) internal successors, (118), 7 states have internal predecessors, (118), 5 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2022-12-13 15:41:26,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:41:26,388 INFO L93 Difference]: Finished difference Result 477580 states and 824880 transitions. [2022-12-13 15:41:26,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 15:41:26,388 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.833333333333334) internal successors, (118), 7 states have internal predecessors, (118), 5 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 180 [2022-12-13 15:41:26,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:41:28,119 INFO L225 Difference]: With dead ends: 477580 [2022-12-13 15:41:28,119 INFO L226 Difference]: Without dead ends: 475422 [2022-12-13 15:41:28,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2022-12-13 15:41:28,271 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 1915 mSDsluCounter, 1708 mSDsCounter, 0 mSdLazyCounter, 4934 mSolverCounterSat, 973 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 5907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 973 IncrementalHoareTripleChecker+Valid, 4934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-13 15:41:28,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1933 Valid, 1921 Invalid, 5907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [973 Valid, 4934 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-13 15:41:28,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475422 states. [2022-12-13 15:42:07,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475422 to 473236. [2022-12-13 15:42:07,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473236 states, 401693 states have (on average 1.6123283203839749) internal successors, (647661), 401502 states have internal predecessors, (647661), 71377 states have call successors, (71377), 135 states have call predecessors, (71377), 165 states have return successors, (86365), 71630 states have call predecessors, (86365), 71359 states have call successors, (86365) [2022-12-13 15:42:09,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473236 states to 473236 states and 805403 transitions. [2022-12-13 15:42:09,610 INFO L78 Accepts]: Start accepts. Automaton has 473236 states and 805403 transitions. Word has length 180 [2022-12-13 15:42:09,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:42:09,610 INFO L495 AbstractCegarLoop]: Abstraction has 473236 states and 805403 transitions. [2022-12-13 15:42:09,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.833333333333334) internal successors, (118), 7 states have internal predecessors, (118), 5 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2022-12-13 15:42:09,611 INFO L276 IsEmpty]: Start isEmpty. Operand 473236 states and 805403 transitions. [2022-12-13 15:42:09,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 15:42:09,809 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:42:09,809 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:42:09,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 15:42:09,810 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:42:09,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:42:09,810 INFO L85 PathProgramCache]: Analyzing trace with hash 702701242, now seen corresponding path program 1 times [2022-12-13 15:42:09,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:42:09,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046718220] [2022-12-13 15:42:09,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:42:09,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:42:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:09,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:42:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:09,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:42:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:09,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:42:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:42:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:09,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:42:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:42:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:42:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:42:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:42:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:42:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 15:42:10,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:42:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 15:42:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 15:42:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:42:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:42:10,024 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 15:42:10,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:42:10,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046718220] [2022-12-13 15:42:10,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046718220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:42:10,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:42:10,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 15:42:10,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378096035] [2022-12-13 15:42:10,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:42:10,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 15:42:10,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:42:10,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 15:42:10,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 15:42:10,025 INFO L87 Difference]: Start difference. First operand 473236 states and 805403 transitions. Second operand has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 15:43:13,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:43:13,867 INFO L93 Difference]: Finished difference Result 720562 states and 1261125 transitions. [2022-12-13 15:43:13,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-13 15:43:13,868 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 159 [2022-12-13 15:43:13,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:43:16,751 INFO L225 Difference]: With dead ends: 720562 [2022-12-13 15:43:16,752 INFO L226 Difference]: Without dead ends: 718910 [2022-12-13 15:43:17,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=502, Unknown=0, NotChecked=0, Total=702 [2022-12-13 15:43:17,003 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 4403 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 3251 mSolverCounterSat, 1997 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4416 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 5248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1997 IncrementalHoareTripleChecker+Valid, 3251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-13 15:43:17,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4416 Valid, 1501 Invalid, 5248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1997 Valid, 3251 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-13 15:43:17,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718910 states. [2022-12-13 15:44:23,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718910 to 709385. [2022-12-13 15:44:23,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709385 states, 602130 states have (on average 1.6123279026123927) internal successors, (970831), 601784 states have internal predecessors, (970831), 106983 states have call successors, (106983), 217 states have call predecessors, (106983), 271 states have return successors, (143991), 107439 states have call predecessors, (143991), 106953 states have call successors, (143991) [2022-12-13 15:44:26,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709385 states to 709385 states and 1221805 transitions. [2022-12-13 15:44:26,628 INFO L78 Accepts]: Start accepts. Automaton has 709385 states and 1221805 transitions. Word has length 159 [2022-12-13 15:44:26,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:44:26,628 INFO L495 AbstractCegarLoop]: Abstraction has 709385 states and 1221805 transitions. [2022-12-13 15:44:26,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.375) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 15:44:26,628 INFO L276 IsEmpty]: Start isEmpty. Operand 709385 states and 1221805 transitions. [2022-12-13 15:44:27,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 15:44:27,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:44:27,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:27,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 15:44:27,115 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:44:27,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:27,116 INFO L85 PathProgramCache]: Analyzing trace with hash -672198882, now seen corresponding path program 1 times [2022-12-13 15:44:27,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:27,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571601475] [2022-12-13 15:44:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:27,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:44:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:44:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:44:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:44:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:44:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:44:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:44:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:44:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:44:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:44:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 15:44:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:44:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-12-13 15:44:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 15:44:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:44:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,316 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 15:44:27,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:27,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571601475] [2022-12-13 15:44:27,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571601475] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:44:27,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725393174] [2022-12-13 15:44:27,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:27,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:44:27,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:44:27,317 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:44:27,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 15:44:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:27,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 1278 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 15:44:27,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-13 15:44:27,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:27,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725393174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:27,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 15:44:27,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2022-12-13 15:44:27,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742956425] [2022-12-13 15:44:27,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:27,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 15:44:27,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:27,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 15:44:27,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=506, Unknown=0, NotChecked=0, Total=552 [2022-12-13 15:44:27,688 INFO L87 Difference]: Start difference. First operand 709385 states and 1221805 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-12-13 15:45:23,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:45:23,608 INFO L93 Difference]: Finished difference Result 715994 states and 1232115 transitions. [2022-12-13 15:45:23,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 15:45:23,608 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 159 [2022-12-13 15:45:23,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:45:26,434 INFO L225 Difference]: With dead ends: 715994 [2022-12-13 15:45:26,434 INFO L226 Difference]: Without dead ends: 712388 [2022-12-13 15:45:26,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 15:45:26,651 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 1152 mSDsluCounter, 4792 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 5459 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 15:45:26,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1162 Valid, 5459 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 15:45:27,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712388 states. [2022-12-13 15:46:29,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712388 to 710022. [2022-12-13 15:46:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710022 states, 602611 states have (on average 1.6121627384830346) internal successors, (971507), 602264 states have internal predecessors, (971507), 107098 states have call successors, (107098), 249 states have call predecessors, (107098), 312 states have return successors, (144170), 107572 states have call predecessors, (144170), 107062 states have call successors, (144170) [2022-12-13 15:46:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710022 states to 710022 states and 1222775 transitions. [2022-12-13 15:46:32,095 INFO L78 Accepts]: Start accepts. Automaton has 710022 states and 1222775 transitions. Word has length 159 [2022-12-13 15:46:32,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:46:32,095 INFO L495 AbstractCegarLoop]: Abstraction has 710022 states and 1222775 transitions. [2022-12-13 15:46:32,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 5 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2022-12-13 15:46:32,096 INFO L276 IsEmpty]: Start isEmpty. Operand 710022 states and 1222775 transitions. [2022-12-13 15:46:32,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-13 15:46:32,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:46:32,598 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:46:32,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-13 15:46:32,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 15:46:32,800 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:46:32,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:46:32,801 INFO L85 PathProgramCache]: Analyzing trace with hash 420888657, now seen corresponding path program 1 times [2022-12-13 15:46:32,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:46:32,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100594007] [2022-12-13 15:46:32,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:46:32,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:46:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 15:46:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 15:46:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 15:46:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 15:46:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 15:46:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 15:46:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 15:46:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 15:46:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 15:46:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 15:46:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 15:46:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 15:46:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-12-13 15:46:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 15:46:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 15:46:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,198 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 15:46:33,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:46:33,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100594007] [2022-12-13 15:46:33,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100594007] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 15:46:33,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871168619] [2022-12-13 15:46:33,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:46:33,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 15:46:33,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:46:33,199 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 15:46:33,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c02666-5cef-4835-b6c6-4b93f826c4c2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 15:46:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:46:33,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 15:46:33,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:46:33,563 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 15:46:33,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 15:46:33,753 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-12-13 15:46:33,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871168619] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 15:46:33,753 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 15:46:33,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 8, 8] total 32 [2022-12-13 15:46:33,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606125045] [2022-12-13 15:46:33,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 15:46:33,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-12-13 15:46:33,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:46:33,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-12-13 15:46:33,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=918, Unknown=0, NotChecked=0, Total=992 [2022-12-13 15:46:33,756 INFO L87 Difference]: Start difference. First operand 710022 states and 1222775 transitions. Second operand has 32 states, 30 states have (on average 9.2) internal successors, (276), 26 states have internal predecessors, (276), 8 states have call successors, (48), 12 states have call predecessors, (48), 10 states have return successors, (37), 8 states have call predecessors, (37), 8 states have call successors, (37)