./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/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_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/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_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/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 331c48a04a8caddf27498f6f02cdac644ba512a5bbe373bec7a9be0d5f3b8263 --- 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 13:16:37,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:16:37,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:16:37,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:16:37,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:16:37,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:16:37,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:16:37,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:16:37,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:16:37,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:16:37,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:16:37,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:16:37,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:16:37,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:16:37,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:16:37,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:16:37,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:16:37,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:16:37,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:16:37,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:16:37,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:16:37,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:16:37,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:16:37,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:16:37,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:16:37,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:16:37,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:16:37,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:16:37,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:16:37,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:16:37,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:16:37,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:16:37,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:16:37,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:16:37,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:16:37,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:16:37,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:16:37,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:16:37,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:16:37,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:16:37,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:16:37,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:16:37,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:16:37,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:16:37,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:16:37,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:16:37,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:16:37,999 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:16:37,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:16:37,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:16:37,999 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:16:38,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:16:38,000 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:16:38,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:16:38,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:16:38,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:16:38,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:16:38,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:16:38,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:16:38,000 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:16:38,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:16:38,001 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:16:38,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:16:38,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:16:38,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:16:38,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:16:38,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:16:38,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:16:38,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:16:38,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:16:38,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:16:38,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:16:38,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:16:38,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:16:38,002 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:16:38,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:16:38,002 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:16:38,002 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_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 331c48a04a8caddf27498f6f02cdac644ba512a5bbe373bec7a9be0d5f3b8263 [2022-12-13 13:16:38,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:16:38,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:16:38,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:16:38,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:16:38,232 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:16:38,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/email_spec0_product36.cil.c [2022-12-13 13:16:40,862 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:16:41,104 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:16:41,105 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/sv-benchmarks/c/product-lines/email_spec0_product36.cil.c [2022-12-13 13:16:41,121 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/data/91aa09a9f/bf9e8b7ec6f448f7a17e9122c0ba6aa7/FLAGe04e082bf [2022-12-13 13:16:41,429 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/data/91aa09a9f/bf9e8b7ec6f448f7a17e9122c0ba6aa7 [2022-12-13 13:16:41,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:16:41,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:16:41,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:16:41,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:16:41,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:16:41,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131a2143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41, skipping insertion in model container [2022-12-13 13:16:41,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:16:41,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:16:41,659 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_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/sv-benchmarks/c/product-lines/email_spec0_product36.cil.c[12529,12542] [2022-12-13 13:16:41,737 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,740 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,740 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,741 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,747 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,748 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,769 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,780 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,781 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:16:41,793 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:16:41,817 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_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/sv-benchmarks/c/product-lines/email_spec0_product36.cil.c[12529,12542] [2022-12-13 13:16:41,840 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,842 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,842 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,843 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,855 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,856 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,864 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,868 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,869 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:16:41,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:16:41,889 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:16:41,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41 WrapperNode [2022-12-13 13:16:41,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:16:41,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:16:41,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:16:41,890 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:16:41,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,940 INFO L138 Inliner]: procedures = 113, calls = 154, calls flagged for inlining = 41, calls inlined = 36, statements flattened = 695 [2022-12-13 13:16:41,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:16:41,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:16:41,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:16:41,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:16:41,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:16:41,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:16:41,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:16:41,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:16:41,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (1/1) ... [2022-12-13 13:16:41,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:16:41,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:41,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:16:42,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:16:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2022-12-13 13:16:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2022-12-13 13:16:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2022-12-13 13:16:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2022-12-13 13:16:42,033 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2022-12-13 13:16:42,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2022-12-13 13:16:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2022-12-13 13:16:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2022-12-13 13:16:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2022-12-13 13:16:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2022-12-13 13:16:42,034 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2022-12-13 13:16:42,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2022-12-13 13:16:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-12-13 13:16:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2022-12-13 13:16:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2022-12-13 13:16:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2022-12-13 13:16:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2022-12-13 13:16:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2022-12-13 13:16:42,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2022-12-13 13:16:42,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:16:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2022-12-13 13:16:42,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2022-12-13 13:16:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2022-12-13 13:16:42,036 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2022-12-13 13:16:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2022-12-13 13:16:42,036 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2022-12-13 13:16:42,036 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2022-12-13 13:16:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2022-12-13 13:16:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:16:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2022-12-13 13:16:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2022-12-13 13:16:42,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:16:42,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:16:42,180 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:16:42,182 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:16:42,659 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:16:42,666 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:16:42,666 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:16:42,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:16:42 BoogieIcfgContainer [2022-12-13 13:16:42,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:16:42,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:16:42,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:16:42,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:16:42,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:16:41" (1/3) ... [2022-12-13 13:16:42,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f6cceb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:16:42, skipping insertion in model container [2022-12-13 13:16:42,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:41" (2/3) ... [2022-12-13 13:16:42,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f6cceb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:16:42, skipping insertion in model container [2022-12-13 13:16:42,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:16:42" (3/3) ... [2022-12-13 13:16:42,674 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product36.cil.c [2022-12-13 13:16:42,689 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:16:42,689 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:16:42,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:16:42,732 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;@f6a9f28, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:16:42,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:16:42,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 232 states, 185 states have (on average 1.5513513513513513) internal successors, (287), 188 states have internal predecessors, (287), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2022-12-13 13:16:42,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 13:16:42,750 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:42,751 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:42,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:42,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:42,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1550210050, now seen corresponding path program 1 times [2022-12-13 13:16:42,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:42,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012933109] [2022-12-13 13:16:42,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:42,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 13:16:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 13:16:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 13:16:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 13:16:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 13:16:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 13:16:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 13:16:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 13:16:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 13:16:43,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:43,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012933109] [2022-12-13 13:16:43,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012933109] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:43,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524809625] [2022-12-13 13:16:43,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:43,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:43,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:43,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:43,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:16:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 13:16:43,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:43,509 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-13 13:16:43,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:16:43,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524809625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:43,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:16:43,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2022-12-13 13:16:43,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855031527] [2022-12-13 13:16:43,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:43,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:16:43,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:43,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:16:43,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:16:43,541 INFO L87 Difference]: Start difference. First operand has 232 states, 185 states have (on average 1.5513513513513513) internal successors, (287), 188 states have internal predecessors, (287), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:43,586 INFO L93 Difference]: Finished difference Result 370 states and 545 transitions. [2022-12-13 13:16:43,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:16:43,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2022-12-13 13:16:43,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:43,596 INFO L225 Difference]: With dead ends: 370 [2022-12-13 13:16:43,596 INFO L226 Difference]: Without dead ends: 225 [2022-12-13 13:16:43,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:16:43,601 INFO L413 NwaCegarLoop]: 345 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, 345 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 13:16:43,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:43,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-12-13 13:16:43,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2022-12-13 13:16:43,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 179 states have (on average 1.541899441340782) internal successors, (276), 181 states have internal predecessors, (276), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2022-12-13 13:16:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 337 transitions. [2022-12-13 13:16:43,639 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 337 transitions. Word has length 88 [2022-12-13 13:16:43,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:43,640 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 337 transitions. [2022-12-13 13:16:43,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:43,641 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 337 transitions. [2022-12-13 13:16:43,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 13:16:43,643 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:43,643 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:43,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:16:43,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:43,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:43,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:43,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1127852437, now seen corresponding path program 1 times [2022-12-13 13:16:43,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:43,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569722611] [2022-12-13 13:16:43,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:43,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:43,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 13:16:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 13:16:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 13:16:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 13:16:44,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 13:16:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:16:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 13:16:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 13:16:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,037 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 13:16:44,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:44,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569722611] [2022-12-13 13:16:44,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569722611] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:44,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633081641] [2022-12-13 13:16:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:44,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:44,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:44,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:44,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:16:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:16:44,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-12-13 13:16:44,242 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:16:44,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633081641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:44,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:16:44,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-12-13 13:16:44,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418296968] [2022-12-13 13:16:44,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:44,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:16:44,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:44,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:16:44,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:16:44,244 INFO L87 Difference]: Start difference. First operand 225 states and 337 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:44,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:44,275 INFO L93 Difference]: Finished difference Result 360 states and 523 transitions. [2022-12-13 13:16:44,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:16:44,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2022-12-13 13:16:44,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:44,278 INFO L225 Difference]: With dead ends: 360 [2022-12-13 13:16:44,278 INFO L226 Difference]: Without dead ends: 228 [2022-12-13 13:16:44,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 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 13:16:44,281 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 668 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 13:16:44,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 668 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:44,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-12-13 13:16:44,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 227. [2022-12-13 13:16:44,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 181 states have (on average 1.5359116022099448) internal successors, (278), 183 states have internal predecessors, (278), 31 states have call successors, (31), 14 states have call predecessors, (31), 14 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2022-12-13 13:16:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 339 transitions. [2022-12-13 13:16:44,298 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 339 transitions. Word has length 89 [2022-12-13 13:16:44,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:44,299 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 339 transitions. [2022-12-13 13:16:44,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:44,299 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 339 transitions. [2022-12-13 13:16:44,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 13:16:44,302 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:44,302 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:44,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:16:44,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:44,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:44,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:44,506 INFO L85 PathProgramCache]: Analyzing trace with hash -336694131, now seen corresponding path program 1 times [2022-12-13 13:16:44,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:44,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112724782] [2022-12-13 13:16:44,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:44,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 13:16:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 13:16:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 13:16:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 13:16:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 13:16:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 13:16:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 13:16:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 13:16:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:44,828 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 13:16:44,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:44,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112724782] [2022-12-13 13:16:44,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112724782] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:44,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729564839] [2022-12-13 13:16:44,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:44,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:44,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:44,829 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:44,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:16:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:16:45,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 13:16:45,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:16:45,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729564839] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:45,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:16:45,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-12-13 13:16:45,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969428995] [2022-12-13 13:16:45,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:45,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:16:45,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:45,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:16:45,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:16:45,061 INFO L87 Difference]: Start difference. First operand 227 states and 339 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 13:16:45,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:45,119 INFO L93 Difference]: Finished difference Result 447 states and 671 transitions. [2022-12-13 13:16:45,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:16:45,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2022-12-13 13:16:45,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:45,121 INFO L225 Difference]: With dead ends: 447 [2022-12-13 13:16:45,122 INFO L226 Difference]: Without dead ends: 229 [2022-12-13 13:16:45,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:16:45,124 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 108 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1197 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 13:16:45,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1197 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:45,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-12-13 13:16:45,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2022-12-13 13:16:45,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 182 states have (on average 1.532967032967033) internal successors, (279), 185 states have internal predecessors, (279), 31 states have call successors, (31), 14 states have call predecessors, (31), 15 states have return successors, (32), 29 states have call predecessors, (32), 30 states have call successors, (32) [2022-12-13 13:16:45,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 342 transitions. [2022-12-13 13:16:45,141 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 342 transitions. Word has length 94 [2022-12-13 13:16:45,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:45,141 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 342 transitions. [2022-12-13 13:16:45,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 13:16:45,142 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 342 transitions. [2022-12-13 13:16:45,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-13 13:16:45,144 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:45,144 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:45,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 13:16:45,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:45,346 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:45,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:45,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1838289989, now seen corresponding path program 1 times [2022-12-13 13:16:45,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:45,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624442603] [2022-12-13 13:16:45,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:45,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 13:16:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 13:16:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 13:16:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:16:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 13:16:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 13:16:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 13:16:45,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 13:16:45,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:45,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624442603] [2022-12-13 13:16:45,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624442603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:45,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:45,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:45,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644161862] [2022-12-13 13:16:45,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:45,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:16:45,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:45,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:16:45,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:16:45,625 INFO L87 Difference]: Start difference. First operand 229 states and 342 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 13:16:46,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:46,760 INFO L93 Difference]: Finished difference Result 589 states and 911 transitions. [2022-12-13 13:16:46,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:16:46,760 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2022-12-13 13:16:46,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:46,765 INFO L225 Difference]: With dead ends: 589 [2022-12-13 13:16:46,765 INFO L226 Difference]: Without dead ends: 379 [2022-12-13 13:16:46,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:16:46,767 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 651 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1888 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:46,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 676 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1888 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 13:16:46,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-12-13 13:16:46,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 229. [2022-12-13 13:16:46,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 182 states have (on average 1.532967032967033) internal successors, (279), 185 states have internal predecessors, (279), 31 states have call successors, (31), 14 states have call predecessors, (31), 15 states have return successors, (31), 29 states have call predecessors, (31), 30 states have call successors, (31) [2022-12-13 13:16:46,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 341 transitions. [2022-12-13 13:16:46,790 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 341 transitions. Word has length 95 [2022-12-13 13:16:46,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:46,791 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 341 transitions. [2022-12-13 13:16:46,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 13:16:46,791 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 341 transitions. [2022-12-13 13:16:46,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 13:16:46,792 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:46,792 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:46,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:16:46,792 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:46,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:46,793 INFO L85 PathProgramCache]: Analyzing trace with hash 798060657, now seen corresponding path program 2 times [2022-12-13 13:16:46,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:46,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005534766] [2022-12-13 13:16:46,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:46,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 13:16:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 13:16:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 13:16:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 13:16:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:16:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 13:16:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 13:16:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:46,904 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-12-13 13:16:46,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:46,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005534766] [2022-12-13 13:16:46,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005534766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:46,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:46,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:16:46,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626985194] [2022-12-13 13:16:46,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:46,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:16:46,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:46,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:16:46,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:16:46,906 INFO L87 Difference]: Start difference. First operand 229 states and 341 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 13:16:48,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:48,033 INFO L93 Difference]: Finished difference Result 591 states and 914 transitions. [2022-12-13 13:16:48,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:16:48,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2022-12-13 13:16:48,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:48,036 INFO L225 Difference]: With dead ends: 591 [2022-12-13 13:16:48,036 INFO L226 Difference]: Without dead ends: 381 [2022-12-13 13:16:48,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:16:48,038 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 646 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1910 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:48,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 678 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1910 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 13:16:48,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-12-13 13:16:48,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 231. [2022-12-13 13:16:48,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 183 states have (on average 1.530054644808743) internal successors, (280), 187 states have internal predecessors, (280), 31 states have call successors, (31), 14 states have call predecessors, (31), 16 states have return successors, (33), 29 states have call predecessors, (33), 30 states have call successors, (33) [2022-12-13 13:16:48,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 344 transitions. [2022-12-13 13:16:48,066 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 344 transitions. Word has length 96 [2022-12-13 13:16:48,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:48,067 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 344 transitions. [2022-12-13 13:16:48,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 13:16:48,067 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 344 transitions. [2022-12-13 13:16:48,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-13 13:16:48,068 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:48,068 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:48,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:16:48,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:48,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:48,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1156358122, now seen corresponding path program 1 times [2022-12-13 13:16:48,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:48,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481410053] [2022-12-13 13:16:48,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:48,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 13:16:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 13:16:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 13:16:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 13:16:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 13:16:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:16:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 13:16:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,165 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:48,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:48,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481410053] [2022-12-13 13:16:48,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481410053] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:48,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368459257] [2022-12-13 13:16:48,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:48,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:48,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:48,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:48,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 13:16:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:48,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:16:48,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:48,360 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:48,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:16:48,410 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:48,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368459257] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:16:48,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:16:48,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2022-12-13 13:16:48,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127282257] [2022-12-13 13:16:48,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:16:48,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:48,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:48,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:48,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:48,413 INFO L87 Difference]: Start difference. First operand 231 states and 344 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 13:16:49,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:49,393 INFO L93 Difference]: Finished difference Result 696 states and 1105 transitions. [2022-12-13 13:16:49,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 13:16:49,394 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 97 [2022-12-13 13:16:49,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:49,398 INFO L225 Difference]: With dead ends: 696 [2022-12-13 13:16:49,398 INFO L226 Difference]: Without dead ends: 564 [2022-12-13 13:16:49,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:16:49,400 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 969 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 1499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:49,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 973 Invalid, 1499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 13:16:49,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-12-13 13:16:49,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 390. [2022-12-13 13:16:49,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 333 states have (on average 1.6516516516516517) internal successors, (550), 337 states have internal predecessors, (550), 40 states have call successors, (40), 14 states have call predecessors, (40), 16 states have return successors, (42), 38 states have call predecessors, (42), 39 states have call successors, (42) [2022-12-13 13:16:49,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 632 transitions. [2022-12-13 13:16:49,473 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 632 transitions. Word has length 97 [2022-12-13 13:16:49,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:49,473 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 632 transitions. [2022-12-13 13:16:49,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 13:16:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 632 transitions. [2022-12-13 13:16:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 13:16:49,475 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:49,475 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:49,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 13:16:49,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 13:16:49,676 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:49,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:49,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1308293423, now seen corresponding path program 1 times [2022-12-13 13:16:49,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:49,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121488087] [2022-12-13 13:16:49,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:49,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 13:16:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 13:16:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 13:16:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 13:16:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 13:16:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 13:16:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 13:16:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:49,753 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:49,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:49,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121488087] [2022-12-13 13:16:49,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121488087] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:49,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:49,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:16:49,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200554831] [2022-12-13 13:16:49,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:49,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:49,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:49,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:49,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:16:49,755 INFO L87 Difference]: Start difference. First operand 390 states and 632 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:50,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:50,721 INFO L93 Difference]: Finished difference Result 1068 states and 1777 transitions. [2022-12-13 13:16:50,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:16:50,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2022-12-13 13:16:50,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:50,726 INFO L225 Difference]: With dead ends: 1068 [2022-12-13 13:16:50,726 INFO L226 Difference]: Without dead ends: 706 [2022-12-13 13:16:50,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:50,728 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 633 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:50,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 583 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 13:16:50,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-12-13 13:16:50,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 548. [2022-12-13 13:16:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 482 states have (on average 1.6867219917012448) internal successors, (813), 486 states have internal predecessors, (813), 49 states have call successors, (49), 14 states have call predecessors, (49), 16 states have return successors, (51), 47 states have call predecessors, (51), 48 states have call successors, (51) [2022-12-13 13:16:50,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 913 transitions. [2022-12-13 13:16:50,769 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 913 transitions. Word has length 104 [2022-12-13 13:16:50,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:50,769 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 913 transitions. [2022-12-13 13:16:50,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:50,769 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 913 transitions. [2022-12-13 13:16:50,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-12-13 13:16:50,772 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:50,772 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:50,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:16:50,772 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:50,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:50,773 INFO L85 PathProgramCache]: Analyzing trace with hash -2130649938, now seen corresponding path program 1 times [2022-12-13 13:16:50,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:50,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090768061] [2022-12-13 13:16:50,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:50,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-12-13 13:16:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 13:16:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 13:16:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 13:16:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 13:16:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 13:16:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 13:16:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:50,855 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:50,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:50,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090768061] [2022-12-13 13:16:50,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090768061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:50,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:50,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:16:50,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083763012] [2022-12-13 13:16:50,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:50,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:50,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:50,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:50,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:16:50,857 INFO L87 Difference]: Start difference. First operand 548 states and 913 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:51,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:51,798 INFO L93 Difference]: Finished difference Result 1445 states and 2455 transitions. [2022-12-13 13:16:51,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:16:51,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2022-12-13 13:16:51,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:51,802 INFO L225 Difference]: With dead ends: 1445 [2022-12-13 13:16:51,802 INFO L226 Difference]: Without dead ends: 943 [2022-12-13 13:16:51,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:51,804 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 631 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:51,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 573 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 13:16:51,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2022-12-13 13:16:51,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 785. [2022-12-13 13:16:51,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 704 states have (on average 1.7116477272727273) internal successors, (1205), 708 states have internal predecessors, (1205), 64 states have call successors, (64), 14 states have call predecessors, (64), 16 states have return successors, (66), 62 states have call predecessors, (66), 63 states have call successors, (66) [2022-12-13 13:16:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1335 transitions. [2022-12-13 13:16:51,836 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1335 transitions. Word has length 105 [2022-12-13 13:16:51,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:51,837 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1335 transitions. [2022-12-13 13:16:51,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:51,837 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1335 transitions. [2022-12-13 13:16:51,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-13 13:16:51,838 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:51,839 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:51,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:16:51,839 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:51,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:51,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1333444051, now seen corresponding path program 1 times [2022-12-13 13:16:51,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:51,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261747058] [2022-12-13 13:16:51,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:51,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 13:16:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 13:16:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:16:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 13:16:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 13:16:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 13:16:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 13:16:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:51,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:51,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261747058] [2022-12-13 13:16:51,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261747058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:51,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:51,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:16:51,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551187291] [2022-12-13 13:16:51,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:51,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:51,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:51,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:51,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:16:51,901 INFO L87 Difference]: Start difference. First operand 785 states and 1335 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:52,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:52,678 INFO L93 Difference]: Finished difference Result 2066 states and 3559 transitions. [2022-12-13 13:16:52,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:16:52,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 106 [2022-12-13 13:16:52,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:52,688 INFO L225 Difference]: With dead ends: 2066 [2022-12-13 13:16:52,688 INFO L226 Difference]: Without dead ends: 1346 [2022-12-13 13:16:52,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:52,692 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 630 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:52,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [648 Valid, 579 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 13:16:52,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-12-13 13:16:52,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1188. [2022-12-13 13:16:52,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 1083 states have (on average 1.7202216066481995) internal successors, (1863), 1087 states have internal predecessors, (1863), 88 states have call successors, (88), 14 states have call predecessors, (88), 16 states have return successors, (90), 86 states have call predecessors, (90), 87 states have call successors, (90) [2022-12-13 13:16:52,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 2041 transitions. [2022-12-13 13:16:52,775 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 2041 transitions. Word has length 106 [2022-12-13 13:16:52,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:52,775 INFO L495 AbstractCegarLoop]: Abstraction has 1188 states and 2041 transitions. [2022-12-13 13:16:52,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 2041 transitions. [2022-12-13 13:16:52,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-12-13 13:16:52,781 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:52,782 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:52,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:16:52,782 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:52,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:52,782 INFO L85 PathProgramCache]: Analyzing trace with hash -65921600, now seen corresponding path program 1 times [2022-12-13 13:16:52,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:52,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503426317] [2022-12-13 13:16:52,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:52,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 13:16:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 13:16:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 13:16:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 13:16:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 13:16:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 13:16:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 13:16:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:52,864 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:52,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:52,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503426317] [2022-12-13 13:16:52,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503426317] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:52,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:52,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:16:52,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352798611] [2022-12-13 13:16:52,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:52,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:52,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:52,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:52,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:16:52,866 INFO L87 Difference]: Start difference. First operand 1188 states and 2041 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:53,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:53,688 INFO L93 Difference]: Finished difference Result 3071 states and 5330 transitions. [2022-12-13 13:16:53,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:16:53,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2022-12-13 13:16:53,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:53,695 INFO L225 Difference]: With dead ends: 3071 [2022-12-13 13:16:53,695 INFO L226 Difference]: Without dead ends: 1996 [2022-12-13 13:16:53,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:53,698 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 628 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:53,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 579 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 13:16:53,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2022-12-13 13:16:53,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1838. [2022-12-13 13:16:53,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1694 states have (on average 1.7207792207792207) internal successors, (2915), 1698 states have internal predecessors, (2915), 127 states have call successors, (127), 14 states have call predecessors, (127), 16 states have return successors, (129), 125 states have call predecessors, (129), 126 states have call successors, (129) [2022-12-13 13:16:53,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 3171 transitions. [2022-12-13 13:16:53,816 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 3171 transitions. Word has length 107 [2022-12-13 13:16:53,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:53,816 INFO L495 AbstractCegarLoop]: Abstraction has 1838 states and 3171 transitions. [2022-12-13 13:16:53,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:53,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 3171 transitions. [2022-12-13 13:16:53,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-13 13:16:53,823 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:53,823 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:53,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:16:53,824 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:53,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:53,824 INFO L85 PathProgramCache]: Analyzing trace with hash -2142427307, now seen corresponding path program 1 times [2022-12-13 13:16:53,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:53,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538694904] [2022-12-13 13:16:53,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:53,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:53,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 13:16:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 13:16:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 13:16:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 13:16:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 13:16:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 13:16:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 13:16:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:53,900 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:53,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:53,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538694904] [2022-12-13 13:16:53,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538694904] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:53,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:53,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:16:53,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721137912] [2022-12-13 13:16:53,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:53,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:53,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:53,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:53,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:16:53,901 INFO L87 Difference]: Start difference. First operand 1838 states and 3171 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:54,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:54,800 INFO L93 Difference]: Finished difference Result 4726 states and 8230 transitions. [2022-12-13 13:16:54,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:16:54,801 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2022-12-13 13:16:54,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:54,808 INFO L225 Difference]: With dead ends: 4726 [2022-12-13 13:16:54,808 INFO L226 Difference]: Without dead ends: 3081 [2022-12-13 13:16:54,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:54,811 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 626 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:54,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 557 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 13:16:54,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2022-12-13 13:16:54,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 2923. [2022-12-13 13:16:54,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2713 states have (on average 1.7176557316623664) internal successors, (4660), 2717 states have internal predecessors, (4660), 193 states have call successors, (193), 14 states have call predecessors, (193), 16 states have return successors, (195), 191 states have call predecessors, (195), 192 states have call successors, (195) [2022-12-13 13:16:54,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 5048 transitions. [2022-12-13 13:16:54,981 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 5048 transitions. Word has length 108 [2022-12-13 13:16:54,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:54,981 INFO L495 AbstractCegarLoop]: Abstraction has 2923 states and 5048 transitions. [2022-12-13 13:16:54,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 5048 transitions. [2022-12-13 13:16:54,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-12-13 13:16:54,990 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:54,991 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:54,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 13:16:54,991 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:54,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:54,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1459544126, now seen corresponding path program 1 times [2022-12-13 13:16:54,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:54,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511905051] [2022-12-13 13:16:54,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:54,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 13:16:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 13:16:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 13:16:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 13:16:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 13:16:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 13:16:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 13:16:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:55,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:55,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511905051] [2022-12-13 13:16:55,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511905051] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:55,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:55,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:16:55,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032982185] [2022-12-13 13:16:55,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:55,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:55,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:55,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:55,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:16:55,083 INFO L87 Difference]: Start difference. First operand 2923 states and 5048 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:56,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:56,089 INFO L93 Difference]: Finished difference Result 7306 states and 12770 transitions. [2022-12-13 13:16:56,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:16:56,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 109 [2022-12-13 13:16:56,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:56,100 INFO L225 Difference]: With dead ends: 7306 [2022-12-13 13:16:56,100 INFO L226 Difference]: Without dead ends: 4776 [2022-12-13 13:16:56,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:56,103 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 623 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 1379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:56,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 551 Invalid, 1379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 13:16:56,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4776 states. [2022-12-13 13:16:56,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4776 to 4618. [2022-12-13 13:16:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4618 states, 4291 states have (on average 1.718247494756467) internal successors, (7373), 4295 states have internal predecessors, (7373), 310 states have call successors, (310), 14 states have call predecessors, (310), 16 states have return successors, (312), 308 states have call predecessors, (312), 309 states have call successors, (312) [2022-12-13 13:16:56,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4618 states to 4618 states and 7995 transitions. [2022-12-13 13:16:56,263 INFO L78 Accepts]: Start accepts. Automaton has 4618 states and 7995 transitions. Word has length 109 [2022-12-13 13:16:56,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:56,263 INFO L495 AbstractCegarLoop]: Abstraction has 4618 states and 7995 transitions. [2022-12-13 13:16:56,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand 4618 states and 7995 transitions. [2022-12-13 13:16:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-12-13 13:16:56,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:56,272 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:56,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 13:16:56,273 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash -512212777, now seen corresponding path program 1 times [2022-12-13 13:16:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:56,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336407867] [2022-12-13 13:16:56,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:56,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-12-13 13:16:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:16:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 13:16:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 13:16:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 13:16:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 13:16:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 13:16:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:56,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:56,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336407867] [2022-12-13 13:16:56,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336407867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:56,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:56,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:16:56,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978855660] [2022-12-13 13:16:56,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:56,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:56,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:56,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:56,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:16:56,334 INFO L87 Difference]: Start difference. First operand 4618 states and 7995 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:57,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:57,500 INFO L93 Difference]: Finished difference Result 12093 states and 21133 transitions. [2022-12-13 13:16:57,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:16:57,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 110 [2022-12-13 13:16:57,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:57,525 INFO L225 Difference]: With dead ends: 12093 [2022-12-13 13:16:57,525 INFO L226 Difference]: Without dead ends: 8036 [2022-12-13 13:16:57,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:57,530 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 623 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:57,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 555 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 13:16:57,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8036 states. [2022-12-13 13:16:57,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8036 to 7878. [2022-12-13 13:16:57,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7878 states, 7335 states have (on average 1.713019768234492) internal successors, (12565), 7339 states have internal predecessors, (12565), 526 states have call successors, (526), 14 states have call predecessors, (526), 16 states have return successors, (528), 524 states have call predecessors, (528), 525 states have call successors, (528) [2022-12-13 13:16:57,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7878 states to 7878 states and 13619 transitions. [2022-12-13 13:16:57,964 INFO L78 Accepts]: Start accepts. Automaton has 7878 states and 13619 transitions. Word has length 110 [2022-12-13 13:16:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:57,964 INFO L495 AbstractCegarLoop]: Abstraction has 7878 states and 13619 transitions. [2022-12-13 13:16:57,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:57,965 INFO L276 IsEmpty]: Start isEmpty. Operand 7878 states and 13619 transitions. [2022-12-13 13:16:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-13 13:16:57,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:57,977 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:57,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 13:16:57,978 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:57,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:57,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1093396272, now seen corresponding path program 1 times [2022-12-13 13:16:57,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:57,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857441077] [2022-12-13 13:16:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:57,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 13:16:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 13:16:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 13:16:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 13:16:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 13:16:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 13:16:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:16:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:58,046 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:58,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:58,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857441077] [2022-12-13 13:16:58,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857441077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:58,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:58,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:16:58,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417373980] [2022-12-13 13:16:58,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:58,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:58,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:58,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:58,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:16:58,048 INFO L87 Difference]: Start difference. First operand 7878 states and 13619 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:59,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:59,109 INFO L93 Difference]: Finished difference Result 18188 states and 31420 transitions. [2022-12-13 13:16:59,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:16:59,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 111 [2022-12-13 13:16:59,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:59,141 INFO L225 Difference]: With dead ends: 18188 [2022-12-13 13:16:59,141 INFO L226 Difference]: Without dead ends: 11647 [2022-12-13 13:16:59,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:59,155 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 618 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:59,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 528 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 13:16:59,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11647 states. [2022-12-13 13:16:59,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11647 to 11489. [2022-12-13 13:16:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11489 states, 10946 states have (on average 1.6890188196601499) internal successors, (18488), 10950 states have internal predecessors, (18488), 526 states have call successors, (526), 14 states have call predecessors, (526), 16 states have return successors, (528), 524 states have call predecessors, (528), 525 states have call successors, (528) [2022-12-13 13:16:59,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11489 states to 11489 states and 19542 transitions. [2022-12-13 13:16:59,613 INFO L78 Accepts]: Start accepts. Automaton has 11489 states and 19542 transitions. Word has length 111 [2022-12-13 13:16:59,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:59,613 INFO L495 AbstractCegarLoop]: Abstraction has 11489 states and 19542 transitions. [2022-12-13 13:16:59,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:16:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 11489 states and 19542 transitions. [2022-12-13 13:16:59,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-13 13:16:59,627 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:59,627 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:16:59,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 13:16:59,627 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:16:59,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:59,627 INFO L85 PathProgramCache]: Analyzing trace with hash 874441945, now seen corresponding path program 1 times [2022-12-13 13:16:59,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:59,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807157829] [2022-12-13 13:16:59,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:59,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:16:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:16:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:16:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 13:16:59,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 13:16:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 13:16:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 13:16:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:16:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 13:16:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 13:16:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:16:59,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:59,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807157829] [2022-12-13 13:16:59,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807157829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:59,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:59,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:16:59,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370286113] [2022-12-13 13:16:59,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:59,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:59,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:59,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:59,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:16:59,693 INFO L87 Difference]: Start difference. First operand 11489 states and 19542 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:17:01,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:17:01,164 INFO L93 Difference]: Finished difference Result 30738 states and 52556 transitions. [2022-12-13 13:17:01,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:17:01,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 112 [2022-12-13 13:17:01,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:17:01,233 INFO L225 Difference]: With dead ends: 30738 [2022-12-13 13:17:01,233 INFO L226 Difference]: Without dead ends: 20909 [2022-12-13 13:17:01,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:17:01,247 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 618 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:17:01,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 557 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 13:17:01,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20909 states. [2022-12-13 13:17:02,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20909 to 20751. [2022-12-13 13:17:02,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20751 states, 19797 states have (on average 1.677829974238521) internal successors, (33216), 19801 states have internal predecessors, (33216), 937 states have call successors, (937), 14 states have call predecessors, (937), 16 states have return successors, (939), 935 states have call predecessors, (939), 936 states have call successors, (939) [2022-12-13 13:17:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20751 states to 20751 states and 35092 transitions. [2022-12-13 13:17:02,146 INFO L78 Accepts]: Start accepts. Automaton has 20751 states and 35092 transitions. Word has length 112 [2022-12-13 13:17:02,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:17:02,146 INFO L495 AbstractCegarLoop]: Abstraction has 20751 states and 35092 transitions. [2022-12-13 13:17:02,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:17:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 20751 states and 35092 transitions. [2022-12-13 13:17:02,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-12-13 13:17:02,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:17:02,177 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 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] [2022-12-13 13:17:02,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 13:17:02,177 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:17:02,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:02,178 INFO L85 PathProgramCache]: Analyzing trace with hash 292262124, now seen corresponding path program 2 times [2022-12-13 13:17:02,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:02,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441642396] [2022-12-13 13:17:02,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:02,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:17:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:17:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:17:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 13:17:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 13:17:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 13:17:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 13:17:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:17:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 13:17:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 13:17:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:02,320 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 13:17:02,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:02,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441642396] [2022-12-13 13:17:02,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441642396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:02,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:17:02,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:17:02,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902506765] [2022-12-13 13:17:02,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:02,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:17:02,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:02,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:17:02,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:17:02,322 INFO L87 Difference]: Start difference. First operand 20751 states and 35092 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:17:04,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:17:04,159 INFO L93 Difference]: Finished difference Result 39360 states and 66767 transitions. [2022-12-13 13:17:04,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:17:04,159 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 112 [2022-12-13 13:17:04,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:17:04,192 INFO L225 Difference]: With dead ends: 39360 [2022-12-13 13:17:04,192 INFO L226 Difference]: Without dead ends: 20909 [2022-12-13 13:17:04,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:17:04,209 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 838 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 2205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 13:17:04,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 960 Invalid, 2205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 13:17:04,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20909 states. [2022-12-13 13:17:05,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20909 to 20751. [2022-12-13 13:17:05,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20751 states, 19797 states have (on average 1.6643935949891397) internal successors, (32950), 19801 states have internal predecessors, (32950), 937 states have call successors, (937), 14 states have call predecessors, (937), 16 states have return successors, (939), 935 states have call predecessors, (939), 936 states have call successors, (939) [2022-12-13 13:17:05,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20751 states to 20751 states and 34826 transitions. [2022-12-13 13:17:05,438 INFO L78 Accepts]: Start accepts. Automaton has 20751 states and 34826 transitions. Word has length 112 [2022-12-13 13:17:05,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:17:05,438 INFO L495 AbstractCegarLoop]: Abstraction has 20751 states and 34826 transitions. [2022-12-13 13:17:05,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:17:05,438 INFO L276 IsEmpty]: Start isEmpty. Operand 20751 states and 34826 transitions. [2022-12-13 13:17:05,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-13 13:17:05,457 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:17:05,457 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:17:05,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 13:17:05,457 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:17:05,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:05,457 INFO L85 PathProgramCache]: Analyzing trace with hash 313759510, now seen corresponding path program 1 times [2022-12-13 13:17:05,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:05,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338674155] [2022-12-13 13:17:05,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:05,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:17:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:17:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:17:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 13:17:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 13:17:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 13:17:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 13:17:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 13:17:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 13:17:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 13:17:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:17:05,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:05,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338674155] [2022-12-13 13:17:05,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338674155] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:05,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:17:05,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:17:05,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843484825] [2022-12-13 13:17:05,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:05,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:17:05,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:05,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:17:05,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:17:05,523 INFO L87 Difference]: Start difference. First operand 20751 states and 34826 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:17:08,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:17:08,086 INFO L93 Difference]: Finished difference Result 57235 states and 96328 transitions. [2022-12-13 13:17:08,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:17:08,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2022-12-13 13:17:08,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:17:08,175 INFO L225 Difference]: With dead ends: 57235 [2022-12-13 13:17:08,175 INFO L226 Difference]: Without dead ends: 38688 [2022-12-13 13:17:08,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:17:08,202 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 615 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:17:08,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 557 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 13:17:08,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38688 states. [2022-12-13 13:17:09,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38688 to 38530. [2022-12-13 13:17:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38530 states, 36778 states have (on average 1.6499265865463049) internal successors, (60681), 36782 states have internal predecessors, (60681), 1735 states have call successors, (1735), 14 states have call predecessors, (1735), 16 states have return successors, (1737), 1733 states have call predecessors, (1737), 1734 states have call successors, (1737) [2022-12-13 13:17:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38530 states to 38530 states and 64153 transitions. [2022-12-13 13:17:09,975 INFO L78 Accepts]: Start accepts. Automaton has 38530 states and 64153 transitions. Word has length 113 [2022-12-13 13:17:09,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:17:09,975 INFO L495 AbstractCegarLoop]: Abstraction has 38530 states and 64153 transitions. [2022-12-13 13:17:09,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:17:09,976 INFO L276 IsEmpty]: Start isEmpty. Operand 38530 states and 64153 transitions. [2022-12-13 13:17:10,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-13 13:17:10,001 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:17:10,001 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:17:10,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 13:17:10,001 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:17:10,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:10,001 INFO L85 PathProgramCache]: Analyzing trace with hash -45501989, now seen corresponding path program 1 times [2022-12-13 13:17:10,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:10,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534027677] [2022-12-13 13:17:10,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:10,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:17:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:17:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:17:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 13:17:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 13:17:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 13:17:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-12-13 13:17:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 13:17:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 13:17:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 13:17:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:17:10,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:10,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534027677] [2022-12-13 13:17:10,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534027677] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:10,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:17:10,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:17:10,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664172787] [2022-12-13 13:17:10,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:10,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:17:10,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:17:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:17:10,078 INFO L87 Difference]: Start difference. First operand 38530 states and 64153 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:17:14,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:17:14,305 INFO L93 Difference]: Finished difference Result 73278 states and 121942 transitions. [2022-12-13 13:17:14,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:17:14,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 114 [2022-12-13 13:17:14,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:17:14,449 INFO L225 Difference]: With dead ends: 73278 [2022-12-13 13:17:14,449 INFO L226 Difference]: Without dead ends: 73146 [2022-12-13 13:17:14,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:17:14,467 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 612 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 13:17:14,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 559 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 13:17:14,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73146 states. [2022-12-13 13:17:17,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73146 to 72988. [2022-12-13 13:17:17,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72988 states, 69667 states have (on average 1.6333988832589317) internal successors, (113794), 69671 states have internal predecessors, (113794), 3304 states have call successors, (3304), 14 states have call predecessors, (3304), 16 states have return successors, (3306), 3302 states have call predecessors, (3306), 3303 states have call successors, (3306) [2022-12-13 13:17:18,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72988 states to 72988 states and 120404 transitions. [2022-12-13 13:17:18,065 INFO L78 Accepts]: Start accepts. Automaton has 72988 states and 120404 transitions. Word has length 114 [2022-12-13 13:17:18,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:17:18,065 INFO L495 AbstractCegarLoop]: Abstraction has 72988 states and 120404 transitions. [2022-12-13 13:17:18,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:17:18,065 INFO L276 IsEmpty]: Start isEmpty. Operand 72988 states and 120404 transitions. [2022-12-13 13:17:18,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-12-13 13:17:18,116 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:17:18,116 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:17:18,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 13:17:18,116 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:17:18,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:18,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1835744788, now seen corresponding path program 1 times [2022-12-13 13:17:18,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:18,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025893258] [2022-12-13 13:17:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:18,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:17:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:17:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:17:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:17:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:17:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 13:17:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 13:17:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 13:17:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 13:17:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 13:17:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 13:17:18,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:18,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025893258] [2022-12-13 13:17:18,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025893258] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:17:18,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361633887] [2022-12-13 13:17:18,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:18,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:17:18,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:17:18,626 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:17:18,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 13:17:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:18,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 13:17:18,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:17:19,084 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 13:17:19,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:17:19,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361633887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:19,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:17:19,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2022-12-13 13:17:19,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481975253] [2022-12-13 13:17:19,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:19,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 13:17:19,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:19,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 13:17:19,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-12-13 13:17:19,087 INFO L87 Difference]: Start difference. First operand 72988 states and 120404 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 13:17:22,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:17:22,849 INFO L93 Difference]: Finished difference Result 73402 states and 121015 transitions. [2022-12-13 13:17:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 13:17:22,849 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 115 [2022-12-13 13:17:22,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:17:23,017 INFO L225 Difference]: With dead ends: 73402 [2022-12-13 13:17:23,017 INFO L226 Difference]: Without dead ends: 73276 [2022-12-13 13:17:23,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2022-12-13 13:17:23,033 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 762 mSDsluCounter, 3169 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 3554 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 13:17:23,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 3554 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 13:17:23,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73276 states. [2022-12-13 13:17:26,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73276 to 73171. [2022-12-13 13:17:26,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73171 states, 69803 states have (on average 1.6329384123891524) internal successors, (113984), 69809 states have internal predecessors, (113984), 3337 states have call successors, (3337), 25 states have call predecessors, (3337), 30 states have return successors, (3359), 3336 states have call predecessors, (3359), 3335 states have call successors, (3359) [2022-12-13 13:17:26,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73171 states to 73171 states and 120680 transitions. [2022-12-13 13:17:26,903 INFO L78 Accepts]: Start accepts. Automaton has 73171 states and 120680 transitions. Word has length 115 [2022-12-13 13:17:26,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:17:26,903 INFO L495 AbstractCegarLoop]: Abstraction has 73171 states and 120680 transitions. [2022-12-13 13:17:26,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 10 states have internal predecessors, (89), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 13:17:26,903 INFO L276 IsEmpty]: Start isEmpty. Operand 73171 states and 120680 transitions. [2022-12-13 13:17:26,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-13 13:17:26,953 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:17:26,953 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:17:26,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 13:17:27,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:17:27,155 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:17:27,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1920780429, now seen corresponding path program 1 times [2022-12-13 13:17:27,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:27,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596293988] [2022-12-13 13:17:27,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:27,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:17:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:17:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:17:27,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:17:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:17:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 13:17:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 13:17:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 13:17:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 13:17:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 13:17:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 13:17:27,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:27,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596293988] [2022-12-13 13:17:27,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596293988] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:17:27,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982735415] [2022-12-13 13:17:27,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:27,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:17:27,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:17:27,533 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:17:27,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 13:17:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:27,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 13:17:27,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:17:27,914 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 13:17:27,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:17:27,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982735415] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:27,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:17:27,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18] total 28 [2022-12-13 13:17:27,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526561591] [2022-12-13 13:17:27,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:27,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 13:17:27,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:27,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 13:17:27,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2022-12-13 13:17:27,916 INFO L87 Difference]: Start difference. First operand 73171 states and 120680 transitions. Second operand has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 13:17:31,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:17:31,572 INFO L93 Difference]: Finished difference Result 73550 states and 121240 transitions. [2022-12-13 13:17:31,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 13:17:31,572 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 116 [2022-12-13 13:17:31,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:17:31,719 INFO L225 Difference]: With dead ends: 73550 [2022-12-13 13:17:31,719 INFO L226 Difference]: Without dead ends: 73250 [2022-12-13 13:17:31,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=204, Invalid=1602, Unknown=0, NotChecked=0, Total=1806 [2022-12-13 13:17:31,735 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 725 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 3722 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:17:31,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 3722 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 13:17:31,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73250 states. [2022-12-13 13:17:35,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73250 to 73171. [2022-12-13 13:17:35,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73171 states, 69803 states have (on average 1.6329097603254874) internal successors, (113982), 69809 states have internal predecessors, (113982), 3337 states have call successors, (3337), 25 states have call predecessors, (3337), 30 states have return successors, (3359), 3336 states have call predecessors, (3359), 3335 states have call successors, (3359) [2022-12-13 13:17:36,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73171 states to 73171 states and 120678 transitions. [2022-12-13 13:17:36,078 INFO L78 Accepts]: Start accepts. Automaton has 73171 states and 120678 transitions. Word has length 116 [2022-12-13 13:17:36,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:17:36,078 INFO L495 AbstractCegarLoop]: Abstraction has 73171 states and 120678 transitions. [2022-12-13 13:17:36,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 13:17:36,078 INFO L276 IsEmpty]: Start isEmpty. Operand 73171 states and 120678 transitions. [2022-12-13 13:17:36,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-13 13:17:36,119 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:17:36,119 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:17:36,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-13 13:17:36,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:17:36,321 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:17:36,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:36,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1495274072, now seen corresponding path program 1 times [2022-12-13 13:17:36,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:36,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168438076] [2022-12-13 13:17:36,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:36,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:17:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:17:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:17:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:17:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:17:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 13:17:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 13:17:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 13:17:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 13:17:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 13:17:36,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:17:36,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:36,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168438076] [2022-12-13 13:17:36,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168438076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:36,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:17:36,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-13 13:17:36,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770485173] [2022-12-13 13:17:36,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:36,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 13:17:36,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:36,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 13:17:36,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-12-13 13:17:36,606 INFO L87 Difference]: Start difference. First operand 73171 states and 120678 transitions. Second operand has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 10 states have internal predecessors, (82), 7 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2022-12-13 13:17:42,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:17:42,255 INFO L93 Difference]: Finished difference Result 74270 states and 122538 transitions. [2022-12-13 13:17:42,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-12-13 13:17:42,256 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 10 states have internal predecessors, (82), 7 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) Word has length 116 [2022-12-13 13:17:42,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:17:42,416 INFO L225 Difference]: With dead ends: 74270 [2022-12-13 13:17:42,416 INFO L226 Difference]: Without dead ends: 73954 [2022-12-13 13:17:42,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=320, Invalid=1660, Unknown=0, NotChecked=0, Total=1980 [2022-12-13 13:17:42,439 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 1028 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 5242 mSolverCounterSat, 665 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 5907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 665 IncrementalHoareTripleChecker+Valid, 5242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 13:17:42,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1595 Invalid, 5907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [665 Valid, 5242 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 13:17:42,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73954 states. [2022-12-13 13:17:46,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73954 to 73402. [2022-12-13 13:17:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73402 states, 69961 states have (on average 1.6321664927602522) internal successors, (114188), 69971 states have internal predecessors, (114188), 3402 states have call successors, (3402), 29 states have call predecessors, (3402), 38 states have return successors, (3461), 3401 states have call predecessors, (3461), 3396 states have call successors, (3461) [2022-12-13 13:17:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73402 states to 73402 states and 121051 transitions. [2022-12-13 13:17:47,175 INFO L78 Accepts]: Start accepts. Automaton has 73402 states and 121051 transitions. Word has length 116 [2022-12-13 13:17:47,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:17:47,175 INFO L495 AbstractCegarLoop]: Abstraction has 73402 states and 121051 transitions. [2022-12-13 13:17:47,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 10 states have internal predecessors, (82), 7 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (10), 5 states have call predecessors, (10), 6 states have call successors, (10) [2022-12-13 13:17:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 73402 states and 121051 transitions. [2022-12-13 13:17:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-12-13 13:17:47,216 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:17:47,217 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:17:47,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 13:17:47,217 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:17:47,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:47,217 INFO L85 PathProgramCache]: Analyzing trace with hash -372987039, now seen corresponding path program 1 times [2022-12-13 13:17:47,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:47,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641122487] [2022-12-13 13:17:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:47,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:17:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:17:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:17:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:17:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:17:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 13:17:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 13:17:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 13:17:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 13:17:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 13:17:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 13:17:47,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:47,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641122487] [2022-12-13 13:17:47,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641122487] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:17:47,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232260292] [2022-12-13 13:17:47,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:47,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:17:47,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:17:47,304 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:17:47,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 13:17:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:47,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 13:17:47,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:17:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-13 13:17:47,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:17:47,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232260292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:47,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:17:47,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2022-12-13 13:17:47,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190627847] [2022-12-13 13:17:47,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:47,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:17:47,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:47,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:17:47,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:17:47,582 INFO L87 Difference]: Start difference. First operand 73402 states and 121051 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:17:51,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:17:51,455 INFO L93 Difference]: Finished difference Result 74095 states and 122129 transitions. [2022-12-13 13:17:51,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:17:51,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 116 [2022-12-13 13:17:51,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:17:51,609 INFO L225 Difference]: With dead ends: 74095 [2022-12-13 13:17:51,609 INFO L226 Difference]: Without dead ends: 73846 [2022-12-13 13:17:51,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-12-13 13:17:51,628 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 562 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 13:17:51,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 1771 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 13:17:51,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73846 states. [2022-12-13 13:17:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73846 to 73621. [2022-12-13 13:17:55,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73621 states, 70125 states have (on average 1.6315579322638145) internal successors, (114413), 70136 states have internal predecessors, (114413), 3445 states have call successors, (3445), 40 states have call predecessors, (3445), 50 states have return successors, (3502), 3444 states have call predecessors, (3502), 3436 states have call successors, (3502) [2022-12-13 13:17:55,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73621 states to 73621 states and 121360 transitions. [2022-12-13 13:17:55,485 INFO L78 Accepts]: Start accepts. Automaton has 73621 states and 121360 transitions. Word has length 116 [2022-12-13 13:17:55,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:17:55,485 INFO L495 AbstractCegarLoop]: Abstraction has 73621 states and 121360 transitions. [2022-12-13 13:17:55,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:17:55,485 INFO L276 IsEmpty]: Start isEmpty. Operand 73621 states and 121360 transitions. [2022-12-13 13:17:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-12-13 13:17:55,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:17:55,528 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:17:55,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 13:17:55,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-12-13 13:17:55,730 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:17:55,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:17:55,731 INFO L85 PathProgramCache]: Analyzing trace with hash 978170001, now seen corresponding path program 1 times [2022-12-13 13:17:55,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:17:55,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177413430] [2022-12-13 13:17:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:17:55,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:17:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:17:55,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:17:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:17:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:17:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:17:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 13:17:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 13:17:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 13:17:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-12-13 13:17:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 13:17:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:17:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:17:55,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:17:55,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177413430] [2022-12-13 13:17:55,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177413430] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:17:55,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:17:55,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 13:17:55,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914012392] [2022-12-13 13:17:55,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:17:55,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 13:17:55,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:17:55,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 13:17:55,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:17:55,863 INFO L87 Difference]: Start difference. First operand 73621 states and 121360 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:18:05,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:18:05,463 INFO L93 Difference]: Finished difference Result 147255 states and 243257 transitions. [2022-12-13 13:18:05,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 13:18:05,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 117 [2022-12-13 13:18:05,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:18:05,798 INFO L225 Difference]: With dead ends: 147255 [2022-12-13 13:18:05,798 INFO L226 Difference]: Without dead ends: 146530 [2022-12-13 13:18:05,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=375, Invalid=1185, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 13:18:05,837 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 1427 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 742 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 742 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 13:18:05,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 784 Invalid, 2944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [742 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 13:18:05,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146530 states. [2022-12-13 13:18:13,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146530 to 143920. [2022-12-13 13:18:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143920 states, 137073 states have (on average 1.6335018566749104) internal successors, (223909), 137094 states have internal predecessors, (223909), 6749 states have call successors, (6749), 78 states have call predecessors, (6749), 97 states have return successors, (6862), 6747 states have call predecessors, (6862), 6731 states have call successors, (6862) [2022-12-13 13:18:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143920 states to 143920 states and 237520 transitions. [2022-12-13 13:18:14,163 INFO L78 Accepts]: Start accepts. Automaton has 143920 states and 237520 transitions. Word has length 117 [2022-12-13 13:18:14,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:18:14,163 INFO L495 AbstractCegarLoop]: Abstraction has 143920 states and 237520 transitions. [2022-12-13 13:18:14,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:18:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 143920 states and 237520 transitions. [2022-12-13 13:18:14,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-13 13:18:14,234 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:18:14,234 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:18:14,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 13:18:14,235 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:18:14,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:18:14,235 INFO L85 PathProgramCache]: Analyzing trace with hash -730653080, now seen corresponding path program 1 times [2022-12-13 13:18:14,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:18:14,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028996199] [2022-12-13 13:18:14,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:14,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:18:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:18:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:18:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:18:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:18:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:18:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 13:18:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 13:18:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 13:18:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 13:18:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 13:18:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,480 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 13:18:14,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:18:14,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028996199] [2022-12-13 13:18:14,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028996199] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:18:14,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231318583] [2022-12-13 13:18:14,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:14,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:18:14,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:18:14,481 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:18:14,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 13:18:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:14,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 13:18:14,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:18:14,773 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 13:18:14,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:18:14,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231318583] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:18:14,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:18:14,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2022-12-13 13:18:14,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796946410] [2022-12-13 13:18:14,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:18:14,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 13:18:14,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:18:14,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 13:18:14,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2022-12-13 13:18:14,775 INFO L87 Difference]: Start difference. First operand 143920 states and 237520 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 13:18:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:18:23,115 INFO L93 Difference]: Finished difference Result 145684 states and 240124 transitions. [2022-12-13 13:18:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 13:18:23,115 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) Word has length 118 [2022-12-13 13:18:23,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:18:23,421 INFO L225 Difference]: With dead ends: 145684 [2022-12-13 13:18:23,422 INFO L226 Difference]: Without dead ends: 144192 [2022-12-13 13:18:23,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=1409, Unknown=0, NotChecked=0, Total=1560 [2022-12-13 13:18:23,455 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 801 mSDsluCounter, 3240 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:18:23,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 3638 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 13:18:23,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144192 states. [2022-12-13 13:18:33,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144192 to 143857. [2022-12-13 13:18:33,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143857 states, 137029 states have (on average 1.6334936400324018) internal successors, (223836), 137049 states have internal predecessors, (223836), 6730 states have call successors, (6730), 78 states have call predecessors, (6730), 97 states have return successors, (6836), 6729 states have call predecessors, (6836), 6712 states have call successors, (6836) [2022-12-13 13:18:33,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143857 states to 143857 states and 237402 transitions. [2022-12-13 13:18:33,732 INFO L78 Accepts]: Start accepts. Automaton has 143857 states and 237402 transitions. Word has length 118 [2022-12-13 13:18:33,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:18:33,732 INFO L495 AbstractCegarLoop]: Abstraction has 143857 states and 237402 transitions. [2022-12-13 13:18:33,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (10), 6 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 13:18:33,732 INFO L276 IsEmpty]: Start isEmpty. Operand 143857 states and 237402 transitions. [2022-12-13 13:18:33,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-12-13 13:18:33,813 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:18:33,813 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:18:33,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 13:18:34,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:18:34,015 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:18:34,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:18:34,016 INFO L85 PathProgramCache]: Analyzing trace with hash 817674202, now seen corresponding path program 1 times [2022-12-13 13:18:34,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:18:34,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391058268] [2022-12-13 13:18:34,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:34,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:18:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:18:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:18:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:18:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:18:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:18:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 13:18:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 13:18:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 13:18:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 13:18:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 13:18:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,105 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 13:18:34,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:18:34,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391058268] [2022-12-13 13:18:34,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391058268] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:18:34,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79908403] [2022-12-13 13:18:34,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:34,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:18:34,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:18:34,107 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:18:34,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 13:18:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:34,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:18:34,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:18:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-13 13:18:34,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:18:34,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79908403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:18:34,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:18:34,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-12-13 13:18:34,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266675846] [2022-12-13 13:18:34,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:18:34,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:18:34,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:18:34,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:18:34,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:18:34,288 INFO L87 Difference]: Start difference. First operand 143857 states and 237402 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:18:42,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:18:42,159 INFO L93 Difference]: Finished difference Result 145815 states and 240320 transitions. [2022-12-13 13:18:42,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:18:42,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 118 [2022-12-13 13:18:42,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:18:42,477 INFO L225 Difference]: With dead ends: 145815 [2022-12-13 13:18:42,477 INFO L226 Difference]: Without dead ends: 144386 [2022-12-13 13:18:42,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 13:18:42,518 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 65 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:18:42,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1077 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:18:42,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144386 states. [2022-12-13 13:18:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144386 to 143881. [2022-12-13 13:18:50,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143881 states, 137053 states have (on average 1.6333535201710287) internal successors, (223856), 137073 states have internal predecessors, (223856), 6730 states have call successors, (6730), 78 states have call predecessors, (6730), 97 states have return successors, (6836), 6729 states have call predecessors, (6836), 6712 states have call successors, (6836) [2022-12-13 13:18:51,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143881 states to 143881 states and 237422 transitions. [2022-12-13 13:18:51,004 INFO L78 Accepts]: Start accepts. Automaton has 143881 states and 237422 transitions. Word has length 118 [2022-12-13 13:18:51,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:18:51,004 INFO L495 AbstractCegarLoop]: Abstraction has 143881 states and 237422 transitions. [2022-12-13 13:18:51,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 13:18:51,005 INFO L276 IsEmpty]: Start isEmpty. Operand 143881 states and 237422 transitions. [2022-12-13 13:18:51,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 13:18:51,134 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:18:51,134 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:18:51,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 13:18:51,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:18:51,336 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:18:51,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:18:51,337 INFO L85 PathProgramCache]: Analyzing trace with hash 890582980, now seen corresponding path program 1 times [2022-12-13 13:18:51,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:18:51,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602912107] [2022-12-13 13:18:51,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:18:51,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:18:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:18:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:18:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:18:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:18:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:18:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 13:18:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 13:18:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:18:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 13:18:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 13:18:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 13:18:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 13:18:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 13:18:51,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:18:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 13:18:51,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:18:51,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602912107] [2022-12-13 13:18:51,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602912107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:18:51,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:18:51,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 13:18:51,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798519931] [2022-12-13 13:18:51,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:18:51,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 13:18:51,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:18:51,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 13:18:51,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:18:51,471 INFO L87 Difference]: Start difference. First operand 143881 states and 237422 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 13:19:10,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:19:10,664 INFO L93 Difference]: Finished difference Result 285574 states and 474421 transitions. [2022-12-13 13:19:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 13:19:10,665 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 134 [2022-12-13 13:19:10,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:19:11,365 INFO L225 Difference]: With dead ends: 285574 [2022-12-13 13:19:11,365 INFO L226 Difference]: Without dead ends: 284091 [2022-12-13 13:19:11,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2022-12-13 13:19:11,437 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1296 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 2814 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 2814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 13:19:11,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1096 Invalid, 3435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 2814 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 13:19:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284091 states. [2022-12-13 13:19:28,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284091 to 280119. [2022-12-13 13:19:28,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280119 states, 266540 states have (on average 1.6373414872064231) internal successors, (436417), 266499 states have internal predecessors, (436417), 13381 states have call successors, (13381), 154 states have call predecessors, (13381), 197 states have return successors, (15740), 13465 states have call predecessors, (15740), 13345 states have call successors, (15740) [2022-12-13 13:19:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280119 states to 280119 states and 465538 transitions. [2022-12-13 13:19:29,038 INFO L78 Accepts]: Start accepts. Automaton has 280119 states and 465538 transitions. Word has length 134 [2022-12-13 13:19:29,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:19:29,038 INFO L495 AbstractCegarLoop]: Abstraction has 280119 states and 465538 transitions. [2022-12-13 13:19:29,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-12-13 13:19:29,038 INFO L276 IsEmpty]: Start isEmpty. Operand 280119 states and 465538 transitions. [2022-12-13 13:19:29,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 13:19:29,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:19:29,252 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:19:29,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 13:19:29,252 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:19:29,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:19:29,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1332844780, now seen corresponding path program 1 times [2022-12-13 13:19:29,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:19:29,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869228931] [2022-12-13 13:19:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:19:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:19:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:19:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:19:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:19:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:19:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:19:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 13:19:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 13:19:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 13:19:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 13:19:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 13:19:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 13:19:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 13:19:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 13:19:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-12-13 13:19:29,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:19:29,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869228931] [2022-12-13 13:19:29,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869228931] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:19:29,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435726910] [2022-12-13 13:19:29,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:19:29,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:19:29,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:19:29,377 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:19:29,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 13:19:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:19:29,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 13:19:29,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:19:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-13 13:19:29,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:19:29,840 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 13:19:29,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435726910] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:19:29,840 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:19:29,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 17 [2022-12-13 13:19:29,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72514232] [2022-12-13 13:19:29,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:19:29,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 13:19:29,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:19:29,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 13:19:29,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-12-13 13:19:29,842 INFO L87 Difference]: Start difference. First operand 280119 states and 465538 transitions. Second operand has 17 states, 16 states have (on average 11.6875) internal successors, (187), 12 states have internal predecessors, (187), 5 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (34), 6 states have call predecessors, (34), 5 states have call successors, (34) [2022-12-13 13:19:49,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:19:49,385 INFO L93 Difference]: Finished difference Result 285833 states and 475083 transitions. [2022-12-13 13:19:49,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-13 13:19:49,385 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 11.6875) internal successors, (187), 12 states have internal predecessors, (187), 5 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (34), 6 states have call predecessors, (34), 5 states have call successors, (34) Word has length 134 [2022-12-13 13:19:49,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:19:50,080 INFO L225 Difference]: With dead ends: 285833 [2022-12-13 13:19:50,080 INFO L226 Difference]: Without dead ends: 283783 [2022-12-13 13:19:50,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 283 SyntacticMatches, 8 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=420, Invalid=1560, Unknown=0, NotChecked=0, Total=1980 [2022-12-13 13:19:50,257 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 1411 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 5127 mSolverCounterSat, 871 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 5998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 871 IncrementalHoareTripleChecker+Valid, 5127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-12-13 13:19:50,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 1540 Invalid, 5998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [871 Valid, 5127 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-12-13 13:19:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283783 states. [2022-12-13 13:20:05,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283783 to 279007. [2022-12-13 13:20:06,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279007 states, 265726 states have (on average 1.6383756199995485) internal successors, (435359), 265671 states have internal predecessors, (435359), 13141 states have call successors, (13141), 114 states have call predecessors, (13141), 139 states have return successors, (15404), 13221 states have call predecessors, (15404), 13117 states have call successors, (15404) [2022-12-13 13:20:07,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279007 states to 279007 states and 463904 transitions. [2022-12-13 13:20:07,014 INFO L78 Accepts]: Start accepts. Automaton has 279007 states and 463904 transitions. Word has length 134 [2022-12-13 13:20:07,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:20:07,014 INFO L495 AbstractCegarLoop]: Abstraction has 279007 states and 463904 transitions. [2022-12-13 13:20:07,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 11.6875) internal successors, (187), 12 states have internal predecessors, (187), 5 states have call successors, (41), 9 states have call predecessors, (41), 8 states have return successors, (34), 6 states have call predecessors, (34), 5 states have call successors, (34) [2022-12-13 13:20:07,014 INFO L276 IsEmpty]: Start isEmpty. Operand 279007 states and 463904 transitions. [2022-12-13 13:20:07,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-13 13:20:07,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:20:07,238 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:20:07,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 13:20:07,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 13:20:07,440 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:20:07,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:20:07,441 INFO L85 PathProgramCache]: Analyzing trace with hash 695741882, now seen corresponding path program 1 times [2022-12-13 13:20:07,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:20:07,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853472100] [2022-12-13 13:20:07,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:20:07,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:20:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:20:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:20:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:20:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 13:20:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-12-13 13:20:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 13:20:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 13:20:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 13:20:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 13:20:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 13:20:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,554 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-13 13:20:07,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:20:07,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853472100] [2022-12-13 13:20:07,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853472100] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:20:07,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441594377] [2022-12-13 13:20:07,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:20:07,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:20:07,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:20:07,555 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:20:07,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 13:20:07,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:07,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:20:07,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:20:07,823 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 13:20:07,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:20:07,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441594377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:20:07,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:20:07,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2022-12-13 13:20:07,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694447585] [2022-12-13 13:20:07,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:20:07,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:20:07,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:20:07,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:20:07,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:20:07,824 INFO L87 Difference]: Start difference. First operand 279007 states and 463904 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 13:20:30,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:20:30,947 INFO L93 Difference]: Finished difference Result 680066 states and 1130800 transitions. [2022-12-13 13:20:30,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:20:30,947 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 131 [2022-12-13 13:20:30,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:20:32,138 INFO L225 Difference]: With dead ends: 680066 [2022-12-13 13:20:32,138 INFO L226 Difference]: Without dead ends: 406684 [2022-12-13 13:20:32,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-12-13 13:20:32,485 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 405 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:20:32,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 777 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:20:32,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406684 states. [2022-12-13 13:20:51,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406684 to 279007. [2022-12-13 13:20:51,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279007 states, 265726 states have (on average 1.6231268298924455) internal successors, (431307), 265671 states have internal predecessors, (431307), 13141 states have call successors, (13141), 114 states have call predecessors, (13141), 139 states have return successors, (15404), 13221 states have call predecessors, (15404), 13117 states have call successors, (15404) [2022-12-13 13:20:52,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279007 states to 279007 states and 459852 transitions. [2022-12-13 13:20:52,579 INFO L78 Accepts]: Start accepts. Automaton has 279007 states and 459852 transitions. Word has length 131 [2022-12-13 13:20:52,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:20:52,579 INFO L495 AbstractCegarLoop]: Abstraction has 279007 states and 459852 transitions. [2022-12-13 13:20:52,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 13:20:52,579 INFO L276 IsEmpty]: Start isEmpty. Operand 279007 states and 459852 transitions. [2022-12-13 13:20:52,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-13 13:20:52,804 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:20:52,804 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 13:20:52,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 13:20:53,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0aad9a8-0790-48ae-b12d-eecbd0c8fd9f/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-13 13:20:53,006 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:20:53,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:20:53,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2048883696, now seen corresponding path program 1 times [2022-12-13 13:20:53,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:20:53,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120936688] [2022-12-13 13:20:53,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:20:53,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:20:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:20:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:20:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:20:53,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 13:20:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 13:20:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 13:20:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 13:20:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 13:20:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 13:20:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 13:20:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 13:20:53,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 13:20:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 13:20:53,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:20:53,141 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 13:20:53,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:20:53,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120936688] [2022-12-13 13:20:53,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120936688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:20:53,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:20:53,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 13:20:53,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596905912] [2022-12-13 13:20:53,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:20:53,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 13:20:53,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:20:53,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 13:20:53,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:20:53,142 INFO L87 Difference]: Start difference. First operand 279007 states and 459852 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 13:21:13,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:21:13,405 INFO L93 Difference]: Finished difference Result 282913 states and 465829 transitions. [2022-12-13 13:21:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 13:21:13,405 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 135 [2022-12-13 13:21:13,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:21:14,084 INFO L225 Difference]: With dead ends: 282913 [2022-12-13 13:21:14,084 INFO L226 Difference]: Without dead ends: 281013 [2022-12-13 13:21:14,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=622, Unknown=0, NotChecked=0, Total=812 [2022-12-13 13:21:14,150 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 867 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 3069 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 3598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 3069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 13:21:14,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1114 Invalid, 3598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 3069 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 13:21:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281013 states. [2022-12-13 13:21:33,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281013 to 278869. [2022-12-13 13:21:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278869 states, 265632 states have (on average 1.6232343994699434) internal successors, (431183), 265579 states have internal predecessors, (431183), 13097 states have call successors, (13097), 112 states have call predecessors, (13097), 139 states have return successors, (15336), 13177 states have call predecessors, (15336), 13073 states have call successors, (15336) [2022-12-13 13:21:34,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278869 states to 278869 states and 459616 transitions. [2022-12-13 13:21:34,608 INFO L78 Accepts]: Start accepts. Automaton has 278869 states and 459616 transitions. Word has length 135 [2022-12-13 13:21:34,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:21:34,609 INFO L495 AbstractCegarLoop]: Abstraction has 278869 states and 459616 transitions. [2022-12-13 13:21:34,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 7 states have internal predecessors, (89), 4 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2022-12-13 13:21:34,609 INFO L276 IsEmpty]: Start isEmpty. Operand 278869 states and 459616 transitions. [2022-12-13 13:21:34,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-12-13 13:21:34,968 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:21:34,968 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:21:34,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 13:21:34,968 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:21:34,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:21:34,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1901999986, now seen corresponding path program 1 times [2022-12-13 13:21:34,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:21:34,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995805504] [2022-12-13 13:21:34,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:21:34,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:21:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 13:21:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 13:21:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 13:21:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 13:21:35,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 13:21:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 13:21:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 13:21:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 13:21:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 13:21:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 13:21:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:21:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-12-13 13:21:35,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:21:35,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995805504] [2022-12-13 13:21:35,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995805504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:21:35,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:21:35,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 13:21:35,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118289448] [2022-12-13 13:21:35,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:21:35,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:21:35,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:21:35,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:21:35,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:21:35,090 INFO L87 Difference]: Start difference. First operand 278869 states and 459616 transitions. Second operand has 10 states, 10 states have (on average 8.1) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-12-13 13:21:55,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:21:55,711 INFO L93 Difference]: Finished difference Result 281251 states and 463407 transitions. [2022-12-13 13:21:55,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 13:21:55,711 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 132 [2022-12-13 13:21:55,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:21:55,713 INFO L225 Difference]: With dead ends: 281251 [2022-12-13 13:21:55,713 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 13:21:55,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2022-12-13 13:21:55,895 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 766 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 2643 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 2910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 2643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-13 13:21:55,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 790 Invalid, 2910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 2643 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-13 13:21:55,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 13:21:55,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 13:21:55,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:21:55,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 13:21:55,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 132 [2022-12-13 13:21:55,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:21:55,902 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:21:55,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.1) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-12-13 13:21:55,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 13:21:55,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 13:21:55,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 13:21:55,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 13:21:55,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 13:22:41,614 WARN L233 SmtUtils]: Spent 45.55s on a formula simplification. DAG size of input: 101 DAG size of output: 100 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)